53660857376 has 24 divisors (see below), whose sum is σ = 120736929600. Its totient is φ = 22997510208.

The previous prime is 53660857303. The next prime is 53660857379. The reversal of 53660857376 is 67375806635.

It is a happy number.

It is a super-2 number, since 2×53660857376² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is not an unprimeable number, because it can be changed into a prime (53660857379) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 119778476 + ... + 119778923.

It is an arithmetic number, because the mean of its divisors is an integer number (5030705400).

Almost surely, 2^53660857376 is an apocalyptic number.

53660857376 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

53660857376 is an abundant number, since it is smaller than the sum of its proper divisors (67076072224).

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

53660857376 is a wasteful number, since it uses less digits than its factorization.

53660857376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239557416 (or 239557408 counting only the distinct ones).

The product of its (nonzero) digits is 19051200, while the sum is 56.

The spelling of 53660857376 in words is "fifty-three billion, six hundred sixty million, eight hundred fifty-seven thousand, three hundred seventy-six".