11655140652 has 48 divisors (see below), whose sum is σ = 30859960320. Its totient is φ = 3802384656.

The previous prime is 11655140639. The next prime is 11655140657. The reversal of 11655140652 is 25604155611.

11655140652 is a `hidden beast` number, since 1 + 1 + 6 + 551 + 40 + 65 + 2 = 666.

It is a super-3 number, since 3×11655140652³ (a number of 31 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (11655140657) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1142988 + ... + 1153139.

It is an arithmetic number, because the mean of its divisors is an integer number (642915840).

Almost surely, 2^11655140652 is an apocalyptic number.

11655140652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11655140652 is an abundant number, since it is smaller than the sum of its proper divisors (19204819668).

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

11655140652 is a wasteful number, since it uses less digits than its factorization.

11655140652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2296187 (or 2296179 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The spelling of 11655140652 in words is "eleven billion, six hundred fifty-five million, one hundred forty thousand, six hundred fifty-two".