61655006650 has 48 divisors (see below), whose sum is σ = 123658335360. Its totient is φ = 22794134400.

The previous prime is 61655006627. The next prime is 61655006657. The reversal of 61655006650 is 5660055616.

It is not an unprimeable number, because it can be changed into a prime (61655006657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 752514 + ... + 830413.

It is an arithmetic number, because the mean of its divisors is an integer number (2576215320).

Almost surely, 2^61655006650 is an apocalyptic number.

61655006650 is an abundant number, since it is smaller than the sum of its proper divisors (62003328710).

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

61655006650 is a wasteful number, since it uses less digits than its factorization.

61655006650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1582999 (or 1582994 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 40.

The spelling of 61655006650 in words is "sixty-one billion, six hundred fifty-five million, six thousand, six hundred fifty".