11653541660 has 24 divisors (see below), whose sum is σ = 24628319520. Its totient is φ = 4631724864.

The previous prime is 11653541659. The next prime is 11653541699. The reversal of 11653541660 is 6614535611.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1852520 + ... + 1858799.

It is an arithmetic number, because the mean of its divisors is an integer number (1026179980).

Almost surely, 2^11653541660 is an apocalyptic number.

11653541660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11653541660 is an abundant number, since it is smaller than the sum of its proper divisors (12974777860).

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

11653541660 is a wasteful number, since it uses less digits than its factorization.

11653541660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3711485 (or 3711483 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 38.

The spelling of 11653541660 in words is "eleven billion, six hundred fifty-three million, five hundred forty-one thousand, six hundred sixty".