172149414516 has 72 divisors (see below), whose sum is σ = 460862123904. Its totient is φ = 53994850560.

The previous prime is 172149414497. The next prime is 172149414539. The reversal of 172149414516 is 615414941271.

172149414516 is a `hidden beast` number, since 1 + 7 + 2 + 1 + 494 + 145 + 16 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2736981 + ... + 2799171.

It is an arithmetic number, because the mean of its divisors is an integer number (6400862832).

Almost surely, 2^172149414516 is an apocalyptic number.

It is an amenable number.

172149414516 is an abundant number, since it is smaller than the sum of its proper divisors (288712709388).

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

172149414516 is a wasteful number, since it uses less digits than its factorization.

172149414516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66741 (or 66736 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The spelling of 172149414516 in words is "one hundred seventy-two billion, one hundred forty-nine million, four hundred fourteen thousand, five hundred sixteen".