165566562035 has 32 divisors (see below), whose sum is σ = 230899126272. Its totient is φ = 111614993280.

The previous prime is 165566562017. The next prime is 165566562043. The reversal of 165566562035 is 530265665561.

It is not a de Polignac number, because 165566562035 - 2¹⁶ = 165566496499 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4557212 + ... + 4593398.

It is an arithmetic number, because the mean of its divisors is an integer number (7215597696).

Almost surely, 2^165566562035 is an apocalyptic number.

165566562035 is a deficient number, since it is larger than the sum of its proper divisors (65332564237).

165566562035 is a wasteful number, since it uses less digits than its factorization.

165566562035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38403.

The product of its (nonzero) digits is 4860000, while the sum is 50.

The spelling of 165566562035 in words is "one hundred sixty-five billion, five hundred sixty-six million, five hundred sixty-two thousand, thirty-five".