61556413014 has 12 divisors (see below), whose sum is σ = 133372228236. Its totient is φ = 20518804332.

The previous prime is 61556413003. The next prime is 61556413019. The reversal of 61556413014 is 41031465516.

61556413014 is a `hidden beast` number, since 6 + 1 + 5 + 5 + 641 + 3 + 0 + 1 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 61556413014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61556413019) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1709900344 + ... + 1709900379.

It is an arithmetic number, because the mean of its divisors is an integer number (11114352353).

Almost surely, 2^61556413014 is an apocalyptic number.

61556413014 is an abundant number, since it is smaller than the sum of its proper divisors (71815815222).

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

61556413014 is a wasteful number, since it uses less digits than its factorization.

61556413014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3419800731 (or 3419800728 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 61556413014 in words is "sixty-one billion, five hundred fifty-six million, four hundred thirteen thousand, fourteen".