165615542660552 has 16 divisors (see below), whose sum is σ = 310567192989900. Its totient is φ = 82797624529920.

The previous prime is 165615542660489. The next prime is 165615542660591. The reversal of 165615542660552 is 255066245516561.

It can be written as a sum of positive squares in 2 ways, for example, as 161680532513956 + 3935010146596 = 12715366^2 + 1983686^2 .

It is a junction number, because it is equal to n+sod(n) for n = 165615542660491 and 165615542660500.

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, 1268280677 + ... + 1268411252.

Almost surely, 2^{165615542660552} is an apocalyptic number.

It is an amenable number.

165615542660552 is a deficient number, since it is larger than the sum of its proper divisors (144951650329348).

165615542660552 is a wasteful number, since it uses less digits than its factorization.

165615542660552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2536700096 (or 2536700092 counting only the distinct ones).

The product of its (nonzero) digits is 64800000, while the sum is 59.

The spelling of 165615542660552 in words is "one hundred sixty-five trillion, six hundred fifteen billion, five hundred forty-two million, six hundred sixty thousand, five hundred fifty-two".