166922553280 has 84 divisors (see below), whose sum is σ = 462379774248. Its totient is φ = 57230584320.

The previous prime is 166922553269. The next prime is 166922553353. The reversal of 166922553280 is 82355229661.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5307106 + ... + 5338465.

It is an arithmetic number, because the mean of its divisors is an integer number (5504521122).

Almost surely, 2^166922553280 is an apocalyptic number.

166922553280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166922553280 is an abundant number, since it is smaller than the sum of its proper divisors (295457220968).

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

166922553280 is a wasteful number, since it uses less digits than its factorization.

166922553280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10645602 (or 10645585 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 49.

The spelling of 166922553280 in words is "one hundred sixty-six billion, nine hundred twenty-two million, five hundred fifty-three thousand, two hundred eighty".