61552242660 has 24 divisors (see below), whose sum is σ = 172346279616. Its totient is φ = 16413931360.

The previous prime is 61552242611. The next prime is 61552242671. The reversal of 61552242660 is 6624225516.

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, 512935296 + ... + 512935415.

It is an arithmetic number, because the mean of its divisors is an integer number (7181094984).

Almost surely, 2^61552242660 is an apocalyptic number.

61552242660 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61552242660 is an abundant number, since it is smaller than the sum of its proper divisors (110794036956).

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

61552242660 is a wasteful number, since it uses less digits than its factorization.

61552242660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1025870723 (or 1025870721 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 61552242660 in words is "sixty-one billion, five hundred fifty-two million, two hundred forty-two thousand, six hundred sixty".