646357050461165 has 16 divisors (see below), whose sum is σ = 816506830941120. Its totient is φ = 489837114766080.

The previous prime is 646357050461123. The next prime is 646357050461191. The reversal of 646357050461165 is 561164050753646.

It is not a de Polignac number, because 646357050461165 - 2⁴⁰ = 645257538833389 is a prime.

It is a congruent number.

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, 231185756 + ... + 233964885.

It is an arithmetic number, because the mean of its divisors is an integer number (51031676933820).

Almost surely, 2^{646357050461165} is an apocalyptic number.

It is an amenable number.

646357050461165 is a deficient number, since it is larger than the sum of its proper divisors (170149780479955).

646357050461165 is a wasteful number, since it uses less digits than its factorization.

646357050461165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465165292.

The product of its (nonzero) digits is 54432000, while the sum is 59.

The spelling of 646357050461165 in words is "six hundred forty-six trillion, three hundred fifty-seven billion, fifty million, four hundred sixty-one thousand, one hundred sixty-five".