61670060136 has 96 divisors (see below), whose sum is σ = 169787404800. Its totient is φ = 20218894080.

The previous prime is 61670060093. The next prime is 61670060191. The reversal of 61670060136 is 63106007616.

61670060136 is a `hidden beast` number, since 6 + 16 + 7 + 0 + 0 + 601 + 36 = 666.

61670060136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 61670060136.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1198735 + ... + 1249121.

It is an arithmetic number, because the mean of its divisors is an integer number (1768618800).

Almost surely, 2^61670060136 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 61670060136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84893702400).

61670060136 is an abundant number, since it is smaller than the sum of its proper divisors (108117344664).

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

61670060136 is a wasteful number, since it uses less digits than its factorization.

61670060136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50679 (or 50672 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The spelling of 61670060136 in words is "sixty-one billion, six hundred seventy million, sixty thousand, one hundred thirty-six".