61342513056 has 120 divisors (see below), whose sum is σ = 196807320864. Its totient is φ = 18588631680.

The previous prime is 61342513051. The next prime is 61342513097. The reversal of 61342513056 is 65031524316.

61342513056 is a `hidden beast` number, since 6 + 1 + 342 + 5 + 1 + 305 + 6 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 61342513056.

It is not an unprimeable number, because it can be changed into a prime (61342513051) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1047220 + ... + 1104243.

Almost surely, 2^61342513056 is an apocalyptic number.

61342513056 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

61342513056 is an abundant number, since it is smaller than the sum of its proper divisors (135464807808).

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

61342513056 is a wasteful number, since it uses less digits than its factorization.

61342513056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2151496 (or 2151479 counting only the distinct ones).

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

The spelling of 61342513056 in words is "sixty-one billion, three hundred forty-two million, five hundred thirteen thousand, fifty-six".