290379799161 has 9 divisors (see below), whose sum is σ = 419439822789. Its totient is φ = 193585455036.

The previous prime is 290379799141. The next prime is 290379799163. The reversal of 290379799161 is 161997973092.

The square root of 290379799161 is 538869.

It is a perfect power (a square), and thus also a powerful number.

It is a tau number, because it is divible by the number of its divisors (9).

It is a de Polignac number, because none of the positive numbers 2^k-290379799161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (290379799163) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1526796 + ... + 1706418.

Almost surely, 2^290379799161 is an apocalyptic number.

290379799161 is the 538869-th square number.

290379799161 is the 269435-th centered octagonal number.

It is an amenable number.

290379799161 is a deficient number, since it is larger than the sum of its proper divisors (129060023628).

290379799161 is an frugal number, since it uses more digits than its factorization.

290379799161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359252 (or 179626 counting only the distinct ones).

The product of its (nonzero) digits is 11573604, while the sum is 63.

The spelling of 290379799161 in words is "two hundred ninety billion, three hundred seventy-nine million, seven hundred ninety-nine thousand, one hundred sixty-one".