117211577652 has 72 divisors (see below), whose sum is σ = 319198564776. Its totient is φ = 36051243264.

The previous prime is 117211577633. The next prime is 117211577669. The reversal of 117211577652 is 256775112711.

117211577652 is a `hidden beast` number, since 1 + 1 + 7 + 2 + 11 + 577 + 65 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 7203935376 + 110007642276 = 84876^2 + 331674^2 .

It is a junction number, because it is equal to n+sod(n) for n = 117211577598 and 117211577607.

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, 1206058 + ... + 1299614.

Almost surely, 2^117211577652 is an apocalyptic number.

117211577652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

117211577652 is an abundant number, since it is smaller than the sum of its proper divisors (201986987124).

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

117211577652 is a wasteful number, since it uses less digits than its factorization.

117211577652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96257 (or 96252 counting only the distinct ones).

The product of its digits is 205800, while the sum is 45.

The spelling of 117211577652 in words is "one hundred seventeen billion, two hundred eleven million, five hundred seventy-seven thousand, six hundred fifty-two".