30666531051 has 24 divisors (see below), whose sum is σ = 49777562016. Its totient is φ = 18051200640.

The previous prime is 30666531019. The next prime is 30666531059. The reversal of 30666531051 is 15013566603.

It is not a de Polignac number, because 30666531051 - 2⁵ = 30666531019 is a prime.

It is a super-2 number, since 2×30666531051² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30666530997 and 30666531015.

It is not an unprimeable number, because it can be changed into a prime (30666531059) 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 23 ways as a sum of consecutive naturals, for example, 5695290 + ... + 5700671.

It is an arithmetic number, because the mean of its divisors is an integer number (2074065084).

Almost surely, 2^30666531051 is an apocalyptic number.

30666531051 is a deficient number, since it is larger than the sum of its proper divisors (19111030965).

30666531051 is a wasteful number, since it uses less digits than its factorization.

30666531051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11396003 (or 11396000 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 36.

The spelling of 30666531051 in words is "thirty billion, six hundred sixty-six million, five hundred thirty-one thousand, fifty-one".