11857015660 has 48 divisors (see below), whose sum is σ = 29694099456. Its totient is φ = 3888510912.

The previous prime is 11857015631. The next prime is 11857015679. The reversal of 11857015660 is 6651075811.

It is a super-2 number, since 2×11857015660² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1837932 + ... + 1844371.

It is an arithmetic number, because the mean of its divisors is an integer number (618627072).

Almost surely, 2^11857015660 is an apocalyptic number.

11857015660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11857015660 is an abundant number, since it is smaller than the sum of its proper divisors (17837083796).

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

11857015660 is a wasteful number, since it uses less digits than its factorization.

11857015660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3682342 (or 3682340 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 40.

The spelling of 11857015660 in words is "eleven billion, eight hundred fifty-seven million, fifteen thousand, six hundred sixty".