165972651006 has 32 divisors (see below), whose sum is σ = 353435063040. Its totient is φ = 51778952576.

The previous prime is 165972650993. The next prime is 165972651059. The reversal of 165972651006 is 600156279561.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4526946 + ... + 4563461.

It is an arithmetic number, because the mean of its divisors is an integer number (11044845720).

Almost surely, 2^165972651006 is an apocalyptic number.

165972651006 is an abundant number, since it is smaller than the sum of its proper divisors (187462412034).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165972651006 is a wasteful number, since it uses less digits than its factorization.

165972651006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9090608.

The product of its (nonzero) digits is 680400, while the sum is 48.

The spelling of 165972651006 in words is "one hundred sixty-five billion, nine hundred seventy-two million, six hundred fifty-one thousand, six".