172057616 has 20 divisors (see below), whose sum is σ = 350907600. Its totient is φ = 81500832.

The previous prime is 172057591. The next prime is 172057619. The reversal of 172057616 is 616750271.

It is not an unprimeable number, because it can be changed into a prime (172057619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 282686 + ... + 283293.

It is an arithmetic number, because the mean of its divisors is an integer number (17545380).

Almost surely, 2^172057616 is an apocalyptic number.

172057616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

172057616 is an abundant number, since it is smaller than the sum of its proper divisors (178849984).

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

172057616 is a wasteful number, since it uses less digits than its factorization.

172057616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566006 (or 566000 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 172057616 is about 13117.0734540903. The cubic root of 172057616 is about 556.1918665671.

The spelling of 172057616 in words is "one hundred seventy-two million, fifty-seven thousand, six hundred sixteen".