165210211346612 has 24 divisors (see below), whose sum is σ = 301873638365376. Its totient is φ = 78965015298048.

The previous prime is 165210211346603. The next prime is 165210211346617. The reversal of 165210211346612 is 216643112012561.

It is a self number, because there is not a number n which added to its sum of digits gives 165210211346612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165210211346617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 551713613 + ... + 552012980.

It is an arithmetic number, because the mean of its divisors is an integer number (12578068265224).

Almost surely, 2^{165210211346612} is an apocalyptic number.

It is an amenable number.

165210211346612 is a deficient number, since it is larger than the sum of its proper divisors (136663427018764).

165210211346612 is a wasteful number, since it uses less digits than its factorization.

165210211346612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1103728247 (or 1103728245 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The spelling of 165210211346612 in words is "one hundred sixty-five trillion, two hundred ten billion, two hundred eleven million, three hundred forty-six thousand, six hundred twelve".