61695581044 has 24 divisors (see below), whose sum is σ = 108361064448. Its totient is φ = 30735444960.

The previous prime is 61695581027. The next prime is 61695581081. The reversal of 61695581044 is 44018559616.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1497894 + ... + 1538530.

It is an arithmetic number, because the mean of its divisors is an integer number (4515044352).

Almost surely, 2^61695581044 is an apocalyptic number.

It is an amenable number.

61695581044 is a deficient number, since it is larger than the sum of its proper divisors (46665483404).

61695581044 is a wasteful number, since it uses less digits than its factorization.

61695581044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42015 (or 42013 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 49.

The spelling of 61695581044 in words is "sixty-one billion, six hundred ninety-five million, five hundred eighty-one thousand, forty-four".