165153214512 has 480 divisors, whose sum is σ = 596466823680. Its totient is φ = 41860177920.

The previous prime is 165153214487. The next prime is 165153214529. The reversal of 165153214512 is 215412351561.

165153214512 is a `hidden beast` number, since 1 + 65 + 1 + 532 + 14 + 51 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8989528 + ... + 9007880.

It is an arithmetic number, because the mean of its divisors is an integer number (1242639216).

Almost surely, 2^165153214512 is an apocalyptic number.

165153214512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 165153214512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (298233411840).

165153214512 is an abundant number, since it is smaller than the sum of its proper divisors (431313609168).

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

165153214512 is a wasteful number, since it uses less digits than its factorization.

165153214512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18433 (or 18424 counting only the distinct ones).

The product of its digits is 36000, while the sum is 36.

The spelling of 165153214512 in words is "one hundred sixty-five billion, one hundred fifty-three million, two hundred fourteen thousand, five hundred twelve".