2660980917 has 24 divisors (see below), whose sum is σ = 4136255616. Its totient is φ = 1517237568.

The previous prime is 2660980897. The next prime is 2660980919. The reversal of 2660980917 is 7190890662.

It is not a de Polignac number, because 2660980917 - 2⁷ = 2660980789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2660980919) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48513 + ... + 87609.

It is an arithmetic number, because the mean of its divisors is an integer number (172343984).

Almost surely, 2^2660980917 is an apocalyptic number.

It is an amenable number.

2660980917 is a deficient number, since it is larger than the sum of its proper divisors (1475274699).

2660980917 is a wasteful number, since it uses less digits than its factorization.

2660980917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39577 (or 39570 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 48.

The square root of 2660980917 is about 51584.6965387992. The cubic root of 2660980917 is about 1385.7362777489.

The spelling of 2660980917 in words is "two billion, six hundred sixty million, nine hundred eighty thousand, nine hundred seventeen".