290520788164 has 12 divisors (see below), whose sum is σ = 508665980844. Its totient is φ = 145187650784.

The previous prime is 290520788113. The next prime is 290520788167. The reversal of 290520788164 is 461887025092.

It can be written as a sum of positive squares in 2 ways, for example, as 99369952900 + 191150835264 = 315230^2 + 437208^2 .

It is not an unprimeable number, because it can be changed into a prime (290520788167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18176839 + ... + 18192814.

It is an arithmetic number, because the mean of its divisors is an integer number (42388831737).

Almost surely, 2^290520788164 is an apocalyptic number.

It is an amenable number.

290520788164 is a deficient number, since it is larger than the sum of its proper divisors (218145192680).

290520788164 is a wasteful number, since it uses less digits than its factorization.

290520788164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36371654 (or 36371652 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 52.

The spelling of 290520788164 in words is "two hundred ninety billion, five hundred twenty million, seven hundred eighty-eight thousand, one hundred sixty-four".