30668157320 has 16 divisors (see below), whose sum is σ = 69003354060. Its totient is φ = 12267262912.

The previous prime is 30668157319. The next prime is 30668157337. The reversal of 30668157320 is 2375186603.

It can be written as a sum of positive squares in 2 ways, for example, as 28599544996 + 2068612324 = 169114^2 + 45482^2 .

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 3 ways as a sum of consecutive naturals, for example, 383351927 + ... + 383352006.

Almost surely, 2^30668157320 is an apocalyptic number.

It is an amenable number.

30668157320 is an abundant number, since it is smaller than the sum of its proper divisors (38335196740).

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

30668157320 is a wasteful number, since it uses less digits than its factorization.

30668157320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766703944 (or 766703940 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 41.

The spelling of 30668157320 in words is "thirty billion, six hundred sixty-eight million, one hundred fifty-seven thousand, three hundred twenty".