290655213940656 has 100 divisors (see below), whose sum is σ = 841363763225832. Its totient is φ = 96870876908544.

The previous prime is 290655213940579. The next prime is 290655213940673. The reversal of 290655213940656 is 656049312556092.

It is a happy number.

290655213940656 is a `hidden beast` number, since 2 + 9 + 0 + 6 + 5 + 5 + 213 + 9 + 406 + 5 + 6 = 666.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 290655213940593 and 290655213940602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7577505 + ... + 25273088.

Almost surely, 2^{290655213940656} is an apocalyptic number.

It is an amenable number.

290655213940656 is an abundant number, since it is smaller than the sum of its proper divisors (550708549285176).

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

290655213940656 is a wasteful number, since it uses less digits than its factorization.

290655213940656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32857440 (or 32857425 counting only the distinct ones).

The product of its (nonzero) digits is 104976000, while the sum is 63.

The spelling of 290655213940656 in words is "two hundred ninety trillion, six hundred fifty-five billion, two hundred thirteen million, nine hundred forty thousand, six hundred fifty-six".