165564107433 has 32 divisors (see below), whose sum is σ = 246005424000. Its totient is φ = 110050161408.

The previous prime is 165564107417. The next prime is 165564107441. The reversal of 165564107433 is 334701465561.

165564107433 is a `hidden beast` number, since 1 + 6 + 5 + 564 + 10 + 74 + 3 + 3 = 666.

It is not a de Polignac number, because 165564107433 - 2⁴ = 165564107417 is a prime.

It is a super-2 number, since 2×165564107433² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (165564107473) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14807341 + ... + 14818517.

It is an arithmetic number, because the mean of its divisors is an integer number (7687669500).

Almost surely, 2^165564107433 is an apocalyptic number.

It is an amenable number.

165564107433 is a deficient number, since it is larger than the sum of its proper divisors (80441316567).

165564107433 is a wasteful number, since it uses less digits than its factorization.

165564107433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12758 (or 12752 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 45.

The spelling of 165564107433 in words is "one hundred sixty-five billion, five hundred sixty-four million, one hundred seven thousand, four hundred thirty-three".