172157746662 has 48 divisors (see below), whose sum is σ = 413589131280. Its totient is φ = 51313780800.

The previous prime is 172157746643. The next prime is 172157746693. The reversal of 172157746662 is 266647751271.

It is a junction number, because it is equal to n+sod(n) for n = 172157746599 and 172157746608.

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, 7114837 + ... + 7138992.

It is an arithmetic number, because the mean of its divisors is an integer number (8616440235).

Almost surely, 2^172157746662 is an apocalyptic number.

172157746662 is an abundant number, since it is smaller than the sum of its proper divisors (241431384618).

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

172157746662 is a wasteful number, since it uses less digits than its factorization.

172157746662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14253909 (or 14253906 counting only the distinct ones).

The product of its digits is 5927040, while the sum is 54.

It can be divided in two parts, 172157 and 746662, that added together give a palindrome (918819).

The spelling of 172157746662 in words is "one hundred seventy-two billion, one hundred fifty-seven million, seven hundred forty-six thousand, six hundred sixty-two".