61695525648 has 80 divisors (see below), whose sum is σ = 161378617536. Its totient is φ = 20308869120.

The previous prime is 61695525637. The next prime is 61695525649. The reversal of 61695525648 is 84652559616.

It is not an unprimeable number, because it can be changed into a prime (61695525649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1244863 + ... + 1293473.

Almost surely, 2^61695525648 is an apocalyptic number.

It is an amenable number.

61695525648 is an abundant number, since it is smaller than the sum of its proper divisors (99683091888).

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

61695525648 is a wasteful number, since it uses less digits than its factorization.

61695525648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48952 (or 48946 counting only the distinct ones).

The product of its digits is 15552000, while the sum is 57.

The spelling of 61695525648 in words is "sixty-one billion, six hundred ninety-five million, five hundred twenty-five thousand, six hundred forty-eight".