61600664446488 has 48 divisors (see below), whose sum is σ = 166840172226000. Its totient is φ = 20532934587840.

The previous prime is 61600664446469. The next prime is 61600664446591. The reversal of 61600664446488 is 88464446600616.

61600664446488 is a `hidden beast` number, since 6 + 16 + 0 + 0 + 66 + 44 + 46 + 488 = 666.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 10518108 + ... + 15291563.

It is an arithmetic number, because the mean of its divisors is an integer number (3475836921375).

Almost surely, 2^{61600664446488} is an apocalyptic number.

It is an amenable number.

61600664446488 is an abundant number, since it is smaller than the sum of its proper divisors (105239507779512).

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

61600664446488 is a wasteful number, since it uses less digits than its factorization.

61600664446488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25842832 (or 25842825 counting only the distinct ones).

The product of its (nonzero) digits is 127401984, while the sum is 63.

The spelling of 61600664446488 in words is "sixty-one trillion, six hundred billion, six hundred sixty-four million, four hundred forty-six thousand, four hundred eighty-eight".