165651072116 has 12 divisors (see below), whose sum is σ = 289911319488. Its totient is φ = 82819266552.

The previous prime is 165651072107. The next prime is 165651072149. The reversal of 165651072116 is 611270156561.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1507676 + ... + 1613811.

It is an arithmetic number, because the mean of its divisors is an integer number (24159276624).

Almost surely, 2^165651072116 is an apocalyptic number.

It is an amenable number.

165651072116 is a deficient number, since it is larger than the sum of its proper divisors (124260247372).

165651072116 is a wasteful number, since it uses less digits than its factorization.

165651072116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3134758 (or 3134756 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 41.

The spelling of 165651072116 in words is "one hundred sixty-five billion, six hundred fifty-one million, seventy-two thousand, one hundred sixteen".