61996325670 has 128 divisors (see below), whose sum is σ = 167087923200. Its totient is φ = 16356380544.

The previous prime is 61996325659. The next prime is 61996325687. The reversal of 61996325670 is 7652369916.

61996325670 is a `hidden beast` number, since 6 + 19 + 9 + 63 + 2 + 567 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 28928619 + ... + 28930761.

It is an arithmetic number, because the mean of its divisors is an integer number (1305374400).

Almost surely, 2^61996325670 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61996325670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83543961600).

61996325670 is an abundant number, since it is smaller than the sum of its proper divisors (105091597530).

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

61996325670 is a wasteful number, since it uses less digits than its factorization.

61996325670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3251 (or 3245 counting only the distinct ones).

The product of its (nonzero) digits is 3674160, while the sum is 54.

The spelling of 61996325670 in words is "sixty-one billion, nine hundred ninety-six million, three hundred twenty-five thousand, six hundred seventy".