61630025570 has 16 divisors (see below), whose sum is σ = 111422746368. Its totient is φ = 24543410160.

The previous prime is 61630025549. The next prime is 61630025593. The reversal of 61630025570 is 7552003616.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 61630025570.

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, 13572626 + ... + 13577165.

It is an arithmetic number, because the mean of its divisors is an integer number (6963921648).

Almost surely, 2^61630025570 is an apocalyptic number.

61630025570 is a deficient number, since it is larger than the sum of its proper divisors (49792720798).

61630025570 is a wasteful number, since it uses less digits than its factorization.

61630025570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27150025.

The product of its (nonzero) digits is 37800, while the sum is 35.

The spelling of 61630025570 in words is "sixty-one billion, six hundred thirty million, twenty-five thousand, five hundred seventy".