47660047666 has 24 divisors (see below), whose sum is σ = 90722096496. Its totient is φ = 18568849320.

The previous prime is 47660047657. The next prime is 47660047703. The reversal of 47660047666 is 66674006674.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22104696 + ... + 22106851.

It is an arithmetic number, because the mean of its divisors is an integer number (3780087354).

Almost surely, 2^47660047666 is an apocalyptic number.

47660047666 is a deficient number, since it is larger than the sum of its proper divisors (43062048830).

47660047666 is a wasteful number, since it uses less digits than its factorization.

47660047666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44211574 (or 44211567 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 52.

The spelling of 47660047666 in words is "forty-seven billion, six hundred sixty million, forty-seven thousand, six hundred sixty-six".