30660664473 has 12 divisors (see below), whose sum is σ = 44329381668. Its totient is φ = 20421171360.

The previous prime is 30660664469. The next prime is 30660664481. The reversal of 30660664473 is 37446606603.

30660664473 is a `hidden beast` number, since 30 + 6 + 606 + 6 + 4 + 4 + 7 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 12305021184 + 18355643289 = 110928^2 + 135483^2 .

It is not a de Polignac number, because 30660664473 - 2² = 30660664469 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30660664453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1595890 + ... + 1614987.

It is an arithmetic number, because the mean of its divisors is an integer number (3694115139).

Almost surely, 2^30660664473 is an apocalyptic number.

It is an amenable number.

30660664473 is a deficient number, since it is larger than the sum of its proper divisors (13668717195).

30660664473 is a wasteful number, since it uses less digits than its factorization.

30660664473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3211944 (or 3211941 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 45.

The spelling of 30660664473 in words is "thirty billion, six hundred sixty million, six hundred sixty-four thousand, four hundred seventy-three".