61606570600 has 24 divisors (see below), whose sum is σ = 143235277110. Its totient is φ = 24642628160.

The previous prime is 61606570579. The next prime is 61606570601. The reversal of 61606570600 is 607560616.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 40406628196 + 21199942404 = 201014^2 + 145602^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 61606570600.

It is not an unprimeable number, because it can be changed into a prime (61606570601) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 154016227 + ... + 154016626.

Almost surely, 2^61606570600 is an apocalyptic number.

It is an amenable number.

61606570600 is an abundant number, since it is smaller than the sum of its proper divisors (81628706510).

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

61606570600 is a wasteful number, since it uses less digits than its factorization.

61606570600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308032869 (or 308032860 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 37.

The spelling of 61606570600 in words is "sixty-one billion, six hundred six million, five hundred seventy thousand, six hundred".