2660466637 has 2 divisors, whose sum is σ = 2660466638. Its totient is φ = 2660466636.

The previous prime is 2660466577. The next prime is 2660466643. The reversal of 2660466637 is 7366640662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1428386436 + 1232080201 = 37794^2 + 35101^2 .

It is a cyclic number.

It is not a de Polignac number, because 2660466637 - 2¹⁵ = 2660433869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2660466737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1330233318 + 1330233319.

It is an arithmetic number, because the mean of its divisors is an integer number (1330233319).

Almost surely, 2^2660466637 is an apocalyptic number.

It is an amenable number.

2660466637 is a deficient number, since it is larger than the sum of its proper divisors (1).

2660466637 is an equidigital number, since it uses as much as digits as its factorization.

2660466637 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1306368, while the sum is 46.

The square root of 2660466637 is about 51579.7114862036. The cubic root of 2660466637 is about 1385.6469995979.

The spelling of 2660466637 in words is "two billion, six hundred sixty million, four hundred sixty-six thousand, six hundred thirty-seven".