2690166407 has 2 divisors, whose sum is σ = 2690166408. Its totient is φ = 2690166406.

The previous prime is 2690166397. The next prime is 2690166439. The reversal of 2690166407 is 7046610962.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2690166407 - 2¹⁰ = 2690165383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2690166467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1345083203 + 1345083204.

It is an arithmetic number, because the mean of its divisors is an integer number (1345083204).

Almost surely, 2^2690166407 is an apocalyptic number.

2690166407 is a deficient number, since it is larger than the sum of its proper divisors (1).

2690166407 is an equidigital number, since it uses as much as digits as its factorization.

2690166407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 2690166407 is about 51866.8141203988. The cubic root of 2690166407 is about 1390.7840937821.

The spelling of 2690166407 in words is "two billion, six hundred ninety million, one hundred sixty-six thousand, four hundred seven".