2660064623 has 2 divisors, whose sum is σ = 2660064624. Its totient is φ = 2660064622.

The previous prime is 2660064611. The next prime is 2660064653. The reversal of 2660064623 is 3264600662.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2660064623 - 2⁶ = 2660064559 is a prime.

It is a super-2 number, since 2×2660064623² = 14151887597072264258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2660064653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1330032311 + 1330032312.

It is an arithmetic number, because the mean of its divisors is an integer number (1330032312).

Almost surely, 2^2660064623 is an apocalyptic number.

2660064623 is a deficient number, since it is larger than the sum of its proper divisors (1).

2660064623 is an equidigital number, since it uses as much as digits as its factorization.

2660064623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 35.

The square root of 2660064623 is about 51575.8143222189. The cubic root of 2660064623 is about 1385.5772026250.

The spelling of 2660064623 in words is "two billion, six hundred sixty million, sixty-four thousand, six hundred twenty-three".