11651745516 has 48 divisors (see below), whose sum is σ = 28666915200. Its totient is φ = 3673251072.

The previous prime is 11651745493. The next prime is 11651745551. The reversal of 11651745516 is 61554715611.

It is a super-2 number, since 2×11651745516² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92115 + ... + 178293.

It is an arithmetic number, because the mean of its divisors is an integer number (597227400).

Almost surely, 2^11651745516 is an apocalyptic number.

It is an amenable number.

11651745516 is an abundant number, since it is smaller than the sum of its proper divisors (17015169684).

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

11651745516 is a wasteful number, since it uses less digits than its factorization.

11651745516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86798 (or 86796 counting only the distinct ones).

The product of its digits is 126000, while the sum is 42.

The spelling of 11651745516 in words is "eleven billion, six hundred fifty-one million, seven hundred forty-five thousand, five hundred sixteen".