290166667213 has 4 divisors (see below), whose sum is σ = 290168107740. Its totient is φ = 290165226688.

The previous prime is 290166667057. The next prime is 290166667261. The reversal of 290166667213 is 312766661092.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 65199536964 + 224967130249 = 255342^2 + 474307^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-290166667213 is a prime.

It is a super-2 number, since 2×290166667213² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290166667613) 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, 357070 + ... + 841327.

It is an arithmetic number, because the mean of its divisors is an integer number (72542026935).

Almost surely, 2^290166667213 is an apocalyptic number.

It is an amenable number.

290166667213 is a deficient number, since it is larger than the sum of its proper divisors (1440527).

290166667213 is a wasteful number, since it uses less digits than its factorization.

290166667213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1440526.

The product of its (nonzero) digits is 979776, while the sum is 49.

The spelling of 290166667213 in words is "two hundred ninety billion, one hundred sixty-six million, six hundred sixty-seven thousand, two hundred thirteen".