30661361994 has 32 divisors (see below), whose sum is σ = 61817976576. Its totient is φ = 10138027520.

The previous prime is 30661361971. The next prime is 30661362001. The reversal of 30661361994 is 49916316603.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1105039 + ... + 1132445.

It is an arithmetic number, because the mean of its divisors is an integer number (1931811768).

Almost surely, 2^30661361994 is an apocalyptic number.

30661361994 is an abundant number, since it is smaller than the sum of its proper divisors (31156614582).

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

30661361994 is a wasteful number, since it uses less digits than its factorization.

30661361994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28910.

The product of its (nonzero) digits is 629856, while the sum is 48.

The spelling of 30661361994 in words is "thirty billion, six hundred sixty-one million, three hundred sixty-one thousand, nine hundred ninety-four".