165031030623 has 64 divisors (see below), whose sum is σ = 253007953920. Its totient is φ = 95121734400.

The previous prime is 165031030609. The next prime is 165031030639. The reversal of 165031030623 is 326030130561.

It is a happy number.

It is not a de Polignac number, because 165031030623 - 2¹⁸ = 165030768479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165031030603) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2856915 + ... + 2914107.

It is an arithmetic number, because the mean of its divisors is an integer number (3953249280).

Almost surely, 2^165031030623 is an apocalyptic number.

165031030623 is a deficient number, since it is larger than the sum of its proper divisors (87976923297).

165031030623 is a wasteful number, since it uses less digits than its factorization.

165031030623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57340.

The product of its (nonzero) digits is 9720, while the sum is 30.

The spelling of 165031030623 in words is "one hundred sixty-five billion, thirty-one million, thirty thousand, six hundred twenty-three".