165370477272 has 128 divisors (see below), whose sum is σ = 555089794560. Its totient is φ = 39649259520.

The previous prime is 165370477189. The next prime is 165370477297. The reversal of 165370477272 is 272774073561.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3417753 + ... + 3465800.

It is an arithmetic number, because the mean of its divisors is an integer number (4336639020).

Almost surely, 2^165370477272 is an apocalyptic number.

165370477272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

165370477272 is an abundant number, since it is smaller than the sum of its proper divisors (389719317288).

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

165370477272 is a wasteful number, since it uses less digits than its factorization.

165370477272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6883593 (or 6883589 counting only the distinct ones).

The product of its (nonzero) digits is 3457440, while the sum is 51.

The spelling of 165370477272 in words is "one hundred sixty-five billion, three hundred seventy million, four hundred seventy-seven thousand, two hundred seventy-two".