61601562102 has 16 divisors (see below), whose sum is σ = 123254000640. Its totient is φ = 20525374632.

The previous prime is 61601562079. The next prime is 61601562173. The reversal of 61601562102 is 20126510616.

It is a self number, because there is not a number n which added to its sum of digits gives 61601562102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2104102 + ... + 2133177.

It is an arithmetic number, because the mean of its divisors is an integer number (7703375040).

Almost surely, 2^61601562102 is an apocalyptic number.

61601562102 is an abundant number, since it is smaller than the sum of its proper divisors (61652438538).

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

61601562102 is a wasteful number, since it uses less digits than its factorization.

61601562102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4239707.

The product of its (nonzero) digits is 4320, while the sum is 30.

The spelling of 61601562102 in words is "sixty-one billion, six hundred one million, five hundred sixty-two thousand, one hundred two".