2666374155513 has 48 divisors (see below), whose sum is σ = 4087830352320. Its totient is φ = 1671876243072.

The previous prime is 2666374155491. The next prime is 2666374155569. The reversal of 2666374155513 is 3155514736662.

It is not a de Polignac number, because 2666374155513 - 2⁵ = 2666374155481 is a prime.

It is a super-2 number, since 2×2666374155513² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2666374155513.

It is not an unprimeable number, because it can be changed into a prime (2666374154513) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3867706 + ... + 4504652.

It is an arithmetic number, because the mean of its divisors is an integer number (85163132340).

Almost surely, 2^{2666374155513} is an apocalyptic number.

It is an amenable number.

2666374155513 is a deficient number, since it is larger than the sum of its proper divisors (1421456196807).

2666374155513 is a wasteful number, since it uses less digits than its factorization.

2666374155513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637398 (or 637395 counting only the distinct ones).

The product of its digits is 13608000, while the sum is 54.

The spelling of 2666374155513 in words is "two trillion, six hundred sixty-six billion, three hundred seventy-four million, one hundred fifty-five thousand, five hundred thirteen".