172212166032 has 40 divisors (see below), whose sum is σ = 444985831584. Its totient is φ = 57390584064.

The previous prime is 172212166013. The next prime is 172212166039. The reversal of 172212166032 is 230661212271.

It is a junction number, because it is equal to n+sod(n) for n = 172212165984 and 172212166002.

It is not an unprimeable number, because it can be changed into a prime (172212166039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213253 + ... + 624420.

Almost surely, 2^172212166032 is an apocalyptic number.

172212166032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

172212166032 is an abundant number, since it is smaller than the sum of its proper divisors (272773665552).

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

172212166032 is a wasteful number, since it uses less digits than its factorization.

172212166032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841967 (or 841961 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The spelling of 172212166032 in words is "one hundred seventy-two billion, two hundred twelve million, one hundred sixty-six thousand, thirty-two".