172620514000 has 160 divisors (see below), whose sum is σ = 459855781632. Its totient is φ = 62148800000.

The previous prime is 172620513979. The next prime is 172620514019. The reversal of 172620514000 is 415026271.

It is a self number, because there is not a number n which added to its sum of digits gives 172620514000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2183157 + ... + 2260843.

Almost surely, 2^172620514000 is an apocalyptic number.

172620514000 is a gapful number since it is divisible by the number (10) 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 172620514000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229927890816).

172620514000 is an abundant number, since it is smaller than the sum of its proper divisors (287235267632).

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

172620514000 is a wasteful number, since it uses less digits than its factorization.

172620514000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77822 (or 77806 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The spelling of 172620514000 in words is "one hundred seventy-two billion, six hundred twenty million, five hundred fourteen thousand".