30149557965 has 72 divisors (see below), whose sum is σ = 54749429280. Its totient is φ = 15916842144.

The previous prime is 30149557961. The next prime is 30149557967. The reversal of 30149557965 is 56975594103.

30149557965 is a `hidden beast` number, since 3 + 0 + 1 + 4 + 9 + 5 + 579 + 65 = 666.

It is not a de Polignac number, because 30149557965 - 2² = 30149557961 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30149557961) by changing a digit.

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 71 ways as a sum of consecutive naturals, for example, 12888766 + ... + 12891104.

It is an arithmetic number, because the mean of its divisors is an integer number (760408740).

Almost surely, 2^30149557965 is an apocalyptic number.

It is an amenable number.

30149557965 is a deficient number, since it is larger than the sum of its proper divisors (24599871315).

30149557965 is an equidigital number, since it uses as much as digits as its factorization.

30149557965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2565 (or 2450 counting only the distinct ones).

The product of its (nonzero) digits is 5103000, while the sum is 54.

The spelling of 30149557965 in words is "thirty billion, one hundred forty-nine million, five hundred fifty-seven thousand, nine hundred sixty-five".