290166676849 has 4 divisors (see below), whose sum is σ = 331619059264. Its totient is φ = 248714294436.

The previous prime is 290166676823. The next prime is 290166676889. The reversal of 290166676849 is 948676661092.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 290166676849 - 2²¹ = 290164579697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (290166676819) 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, 20726191197 + ... + 20726191210.

It is an arithmetic number, because the mean of its divisors is an integer number (82904764816).

Almost surely, 2^290166676849 is an apocalyptic number.

It is an amenable number.

290166676849 is a deficient number, since it is larger than the sum of its proper divisors (41452382415).

290166676849 is an equidigital number, since it uses as much as digits as its factorization.

290166676849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41452382414.

The product of its (nonzero) digits is 47029248, while the sum is 64.

The spelling of 290166676849 in words is "two hundred ninety billion, one hundred sixty-six million, six hundred seventy-six thousand, eight hundred forty-nine".