165211705620354 has 8 divisors (see below), whose sum is σ = 330423411240720. Its totient is φ = 55070568540116.

The previous prime is 165211705620337. The next prime is 165211705620389. The reversal of 165211705620354 is 453026507112561.

It is a sphenic number, since it is the product of 3 distinct primes.

165211705620354 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13767642135024 + ... + 13767642135035.

It is an arithmetic number, because the mean of its divisors is an integer number (41302926405090).

Almost surely, 2^{165211705620354} is an apocalyptic number.

165211705620354 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

165211705620354 is a wasteful number, since it uses less digits than its factorization.

165211705620354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27535284270064.

The product of its (nonzero) digits is 1512000, while the sum is 48.

The spelling of 165211705620354 in words is "one hundred sixty-five trillion, two hundred eleven billion, seven hundred five million, six hundred twenty thousand, three hundred fifty-four".