11653415540 has 48 divisors (see below), whose sum is σ = 27741745920. Its totient is φ = 4076334720.

The previous prime is 11653415537. The next prime is 11653415567. The reversal of 11653415540 is 4551435611.

It is a self number, because there is not a number n which added to its sum of digits gives 11653415540.

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, 1174556 + ... + 1184435.

It is an arithmetic number, because the mean of its divisors is an integer number (577953040).

Almost surely, 2^11653415540 is an apocalyptic number.

11653415540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11653415540 is an abundant number, since it is smaller than the sum of its proper divisors (16088330380).

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

11653415540 is a wasteful number, since it uses less digits than its factorization.

11653415540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2359032 (or 2359030 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 35.

The spelling of 11653415540 in words is "eleven billion, six hundred fifty-three million, four hundred fifteen thousand, five hundred forty".