166902651744 has 96 divisors (see below), whose sum is σ = 449069806080. Its totient is φ = 54245299200.

The previous prime is 166902651733. The next prime is 166902651749. The reversal of 166902651744 is 447156209661.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166902651749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7195237 + ... + 7218395.

It is an arithmetic number, because the mean of its divisors is an integer number (4677810480).

Almost surely, 2^166902651744 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166902651744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224534903040).

166902651744 is an abundant number, since it is smaller than the sum of its proper divisors (282167154336).

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

166902651744 is a wasteful number, since it uses less digits than its factorization.

166902651744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25044 (or 25036 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 51.

The spelling of 166902651744 in words is "one hundred sixty-six billion, nine hundred two million, six hundred fifty-one thousand, seven hundred forty-four".