11861517160 has 16 divisors (see below), whose sum is σ = 26688413700. Its totient is φ = 4744606848.

The previous prime is 11861517149. The next prime is 11861517209. The reversal of 11861517160 is 6171516811.

It can be written as a sum of positive squares in 2 ways, for example, as 9757093284 + 2104423876 = 98778^2 + 45874^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148268925 + ... + 148269004.

Almost surely, 2^11861517160 is an apocalyptic number.

11861517160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11861517160 is an abundant number, since it is smaller than the sum of its proper divisors (14826896540).

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

11861517160 is a wasteful number, since it uses less digits than its factorization.

11861517160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296537940 (or 296537936 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 37.

The spelling of 11861517160 in words is "eleven billion, eight hundred sixty-one million, five hundred seventeen thousand, one hundred sixty".