172209934416 has 40 divisors (see below), whose sum is σ = 479096870560. Its totient is φ = 52987671936.

The previous prime is 172209934409. The next prime is 172209934447. The reversal of 172209934416 is 614439902271.

It is a super-2 number, since 2×172209934416² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137988106 + ... + 137989353.

It is an arithmetic number, because the mean of its divisors is an integer number (11977421764).

Almost surely, 2^172209934416 is an apocalyptic number.

172209934416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

172209934416 is an abundant number, since it is smaller than the sum of its proper divisors (306886936144).

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

172209934416 is a wasteful number, since it uses less digits than its factorization.

172209934416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275977483 (or 275977477 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 48.

The spelling of 172209934416 in words is "one hundred seventy-two billion, two hundred nine million, nine hundred thirty-four thousand, four hundred sixteen".