30665690854 has 16 divisors (see below), whose sum is σ = 47494840320. Its totient is φ = 14834337480.

The previous prime is 30665690849. The next prime is 30665690977. The reversal of 30665690854 is 45809656603.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180187 + ... + 306265.

It is an arithmetic number, because the mean of its divisors is an integer number (2968427520).

Almost surely, 2^30665690854 is an apocalyptic number.

30665690854 is a deficient number, since it is larger than the sum of its proper divisors (16829149466).

30665690854 is a wasteful number, since it uses less digits than its factorization.

30665690854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130035.

The product of its (nonzero) digits is 4665600, while the sum is 52.

The spelling of 30665690854 in words is "thirty billion, six hundred sixty-five million, six hundred ninety thousand, eight hundred fifty-four".