30090817156 has 12 divisors (see below), whose sum is σ = 55756514268. Its totient is φ = 14160384512.

The previous prime is 30090817153. The next prime is 30090817219. The reversal of 30090817156 is 65171809003.

It can be written as a sum of positive squares in 2 ways, for example, as 21530866756 + 8559950400 = 146734^2 + 92520^2 .

It is not an unprimeable number, because it can be changed into a prime (30090817153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221255941 + ... + 221256076.

It is an arithmetic number, because the mean of its divisors is an integer number (4646376189).

Almost surely, 2^30090817156 is an apocalyptic number.

It is an amenable number.

30090817156 is a deficient number, since it is larger than the sum of its proper divisors (25665697112).

30090817156 is a wasteful number, since it uses less digits than its factorization.

30090817156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442512038 (or 442512036 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 40.

The spelling of 30090817156 in words is "thirty billion, ninety million, eight hundred seventeen thousand, one hundred fifty-six".