11736615540 has 48 divisors (see below), whose sum is σ = 35390412288. Its totient is φ = 2889012864.

The previous prime is 11736615493. The next prime is 11736615617. The reversal of 11736615540 is 4551663711.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

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, 7522692 + ... + 7524251.

It is an arithmetic number, because the mean of its divisors is an integer number (737300256).

Almost surely, 2^11736615540 is an apocalyptic number.

11736615540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11736615540 is an abundant number, since it is smaller than the sum of its proper divisors (23653796748).

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

11736615540 is a wasteful number, since it uses less digits than its factorization.

11736615540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15046968 (or 15046966 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 39.

The spelling of 11736615540 in words is "eleven billion, seven hundred thirty-six million, six hundred fifteen thousand, five hundred forty".