2660140560451 has 144 divisors (see below), whose sum is σ = 3283637059584. Its totient is φ = 2146811040000.

The previous prime is 2660140560443. The next prime is 2660140560479. The reversal of 2660140560451 is 1540650410662.

It is not a de Polignac number, because 2660140560451 - 2³ = 2660140560443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2660140560421) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 11928881326 + ... + 11928881548.

It is an arithmetic number, because the mean of its divisors is an integer number (22803035136).

Almost surely, 2^{2660140560451} is an apocalyptic number.

2660140560451 is a deficient number, since it is larger than the sum of its proper divisors (623496499133).

2660140560451 is a wasteful number, since it uses less digits than its factorization.

2660140560451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474 (or 426 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 2660140560451 in words is "two trillion, six hundred sixty billion, one hundred forty million, five hundred sixty thousand, four hundred fifty-one".