61650011564 has 12 divisors (see below), whose sum is σ = 107921163000. Its totient is φ = 30815393568.

The previous prime is 61650011561. The next prime is 61650011567. The reversal of 61650011564 is 46511005616.

It is an interprime number because it is at equal distance from previous prime (61650011561) and next prime (61650011567).

It is not an unprimeable number, because it can be changed into a prime (61650011561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2388614 + ... + 2414285.

It is an arithmetic number, because the mean of its divisors is an integer number (8993430250).

Almost surely, 2^61650011564 is an apocalyptic number.

It is an amenable number.

61650011564 is a deficient number, since it is larger than the sum of its proper divisors (46271151436).

61650011564 is a wasteful number, since it uses less digits than its factorization.

61650011564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4806112 (or 4806110 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 35.

The spelling of 61650011564 in words is "sixty-one billion, six hundred fifty million, eleven thousand, five hundred sixty-four".