166793774292 has 96 divisors (see below), whose sum is σ = 446605286400. Its totient is φ = 53777001600.

The previous prime is 166793774291. The next prime is 166793774293. The reversal of 166793774292 is 292477397661.

166793774292 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (166793774291) and next prime (166793774293).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166793774291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7156434 + ... + 7179702.

It is an arithmetic number, because the mean of its divisors is an integer number (4652138400).

Almost surely, 2^166793774292 is an apocalyptic number.

166793774292 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166793774292, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223302643200).

166793774292 is an abundant number, since it is smaller than the sum of its proper divisors (279811512108).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166793774292 is a wasteful number, since it uses less digits than its factorization.

166793774292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25454 (or 25446 counting only the distinct ones).

The product of its digits is 48009024, while the sum is 63.

The spelling of 166793774292 in words is "one hundred sixty-six billion, seven hundred ninety-three million, seven hundred seventy-four thousand, two hundred ninety-two".