165026001963 has 8 divisors (see below), whose sum is σ = 221714323776. Its totient is φ = 109177507400.

The previous prime is 165026001953. The next prime is 165026001971. The reversal of 165026001963 is 369100620561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 165026001963 - 2²⁸ = 164757566507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (165026001913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209956353 + ... + 209957138.

It is an arithmetic number, because the mean of its divisors is an integer number (27714290472).

Almost surely, 2^165026001963 is an apocalyptic number.

165026001963 is a deficient number, since it is larger than the sum of its proper divisors (56688321813).

165026001963 is a wasteful number, since it uses less digits than its factorization.

165026001963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419913625.

The product of its (nonzero) digits is 58320, while the sum is 39.

The spelling of 165026001963 in words is "one hundred sixty-five billion, twenty-six million, one thousand, nine hundred sixty-three".