2660642023 has 16 divisors (see below), whose sum is σ = 2908980256. Its totient is φ = 2418647040.

The previous prime is 2660641939. The next prime is 2660642041. The reversal of 2660642023 is 3202460662.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2660642023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2660642723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 767911 + ... + 771367.

It is an arithmetic number, because the mean of its divisors is an integer number (181811266).

Almost surely, 2^2660642023 is an apocalyptic number.

2660642023 is a deficient number, since it is larger than the sum of its proper divisors (248338233).

2660642023 is a wasteful number, since it uses less digits than its factorization.

2660642023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4354.

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 2660642023 is about 51581.4116034061. The cubic root of 2660642023 is about 1385.6774476079.

The spelling of 2660642023 in words is "two billion, six hundred sixty million, six hundred forty-two thousand, twenty-three".