61500606112 has 72 divisors (see below), whose sum is σ = 133167882708. Its totient is φ = 27937873920.

The previous prime is 61500606061. The next prime is 61500606163. The reversal of 61500606112 is 21160600516.

It is an interprime number because it is at equal distance from previous prime (61500606061) and next prime (61500606163).

It can be written as a sum of positive squares in 2 ways, for example, as 60734645136 + 765960976 = 246444^2 + 27676^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8177778 + ... + 8185294.

Almost surely, 2^61500606112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61500606112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66583941354).

61500606112 is an abundant number, since it is smaller than the sum of its proper divisors (71667276596).

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

61500606112 is a wasteful number, since it uses less digits than its factorization.

61500606112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9662 (or 9643 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The spelling of 61500606112 in words is "sixty-one billion, five hundred million, six hundred six thousand, one hundred twelve".