11623655340 has 72 divisors (see below), whose sum is σ = 38463738768. Its totient is φ = 2817855360.

The previous prime is 11623655317. The next prime is 11623655353. The reversal of 11623655340 is 4355632611.

11623655340 is a `hidden beast` number, since 1 + 1 + 62 + 3 + 6 + 553 + 40 = 666.

It is a super-2 number, since 2×11623655340² (a number of 21 digits) contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 11623655295 and 11623655304.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2933287 + ... + 2937246.

It is an arithmetic number, because the mean of its divisors is an integer number (534218594).

Almost surely, 2^11623655340 is an apocalyptic number.

11623655340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11623655340 is an abundant number, since it is smaller than the sum of its proper divisors (26840083428).

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

11623655340 is a wasteful number, since it uses less digits than its factorization.

11623655340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5870559 (or 5870554 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The spelling of 11623655340 in words is "eleven billion, six hundred twenty-three million, six hundred fifty-five thousand, three hundred forty".