11172075664 has 10 divisors (see below), whose sum is σ = 21645896630. Its totient is φ = 5586037824.

The previous prime is 11172075613. The next prime is 11172075679. The reversal of 11172075664 is 46657027111.

It can be written as a sum of positive squares in only one way, i.e., 8332038400 + 2840037264 = 91280^2 + 53292^2 .

It is a super-3 number, since 3×11172075664³ (a number of 31 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349127349 + ... + 349127380.

It is an arithmetic number, because the mean of its divisors is an integer number (2164589663).

Almost surely, 2^11172075664 is an apocalyptic number.

It is an amenable number.

11172075664 is a deficient number, since it is larger than the sum of its proper divisors (10473820966).

11172075664 is an equidigital number, since it uses as much as digits as its factorization.

11172075664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698254737 (or 698254731 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 40.

The spelling of 11172075664 in words is "eleven billion, one hundred seventy-two million, seventy-five thousand, six hundred sixty-four".