2666634514325 has 12 divisors (see below), whose sum is σ = 3335888985348. Its totient is φ = 2114428780800.

The previous prime is 2666634514309. The next prime is 2666634514331. The reversal of 2666634514325 is 5234154366662.

It can be written as a sum of positive squares in 6 ways, for example, as 1146113701489 + 1520520812836 = 1070567^2 + 1233094^2 .

It is not a de Polignac number, because 2666634514325 - 2⁴ = 2666634514309 is a prime.

It is a super-2 number, since 2×2666634514325² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 471967886 + ... + 471973535.

It is an arithmetic number, because the mean of its divisors is an integer number (277990748779).

Almost surely, 2^{2666634514325} is an apocalyptic number.

2666634514325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2666634514325 is a deficient number, since it is larger than the sum of its proper divisors (669254471023).

2666634514325 is a wasteful number, since it uses less digits than its factorization.

2666634514325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943941544 (or 943941539 counting only the distinct ones).

The product of its digits is 18662400, while the sum is 53.

The spelling of 2666634514325 in words is "two trillion, six hundred sixty-six billion, six hundred thirty-four million, five hundred fourteen thousand, three hundred twenty-five".