165487674440 has 64 divisors (see below), whose sum is σ = 423857784960. Its totient is φ = 57560926720.

The previous prime is 165487674439. The next prime is 165487674481. The reversal of 165487674440 is 44476784561.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8166149 + ... + 8186388.

It is an arithmetic number, because the mean of its divisors is an integer number (6622777890).

Almost surely, 2^165487674440 is an apocalyptic number.

165487674440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165487674440 is an abundant number, since it is smaller than the sum of its proper divisors (258370110520).

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

165487674440 is a wasteful number, since it uses less digits than its factorization.

165487674440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16352582 (or 16352578 counting only the distinct ones).

The product of its (nonzero) digits is 18063360, while the sum is 56.

The spelling of 165487674440 in words is "one hundred sixty-five billion, four hundred eighty-seven million, six hundred seventy-four thousand, four hundred forty".