61412444662554 has 64 divisors (see below), whose sum is σ = 138125005200000. Its totient is φ = 20222909940096.

The previous prime is 61412444662537. The next prime is 61412444662781. The reversal of 61412444662554 is 45526644421416.

61412444662554 is a `hidden beast` number, since 6 + 1 + 4 + 1 + 2 + 4 + 4 + 4 + 6 + 625 + 5 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 61412444662554.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72406392 + ... + 73249644.

It is an arithmetic number, because the mean of its divisors is an integer number (2158203206250).

Almost surely, 2^{61412444662554} is an apocalyptic number.

61412444662554 is an abundant number, since it is smaller than the sum of its proper divisors (76712560537446).

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

61412444662554 is a wasteful number, since it uses less digits than its factorization.

61412444662554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859596 (or 859590 counting only the distinct ones).

The product of its digits is 22118400, while the sum is 54.

The spelling of 61412444662554 in words is "sixty-one trillion, four hundred twelve billion, four hundred forty-four million, six hundred sixty-two thousand, five hundred fifty-four".