61250665960 has 32 divisors (see below), whose sum is σ = 150342544800. Its totient is φ = 22272969280.

The previous prime is 61250665951. The next prime is 61250665963. The reversal of 61250665960 is 6956605216.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 61250665960.

It is not an unprimeable number, because it can be changed into a prime (61250665963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69602590 + ... + 69603469.

It is an arithmetic number, because the mean of its divisors is an integer number (4698204525).

Almost surely, 2^61250665960 is an apocalyptic number.

It is an amenable number.

61250665960 is an abundant number, since it is smaller than the sum of its proper divisors (89091878840).

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

61250665960 is a wasteful number, since it uses less digits than its factorization.

61250665960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139206081 (or 139206077 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 46.

The spelling of 61250665960 in words is "sixty-one billion, two hundred fifty million, six hundred sixty-five thousand, nine hundred sixty".