2666693580 has 24 divisors (see below), whose sum is σ = 7466742192. Its totient is φ = 711118272.

The previous prime is 2666693573. The next prime is 2666693597. The reversal of 2666693580 is 853966662.

It is a super-2 number, since 2×2666693580² = 14222509299226432800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22222387 + ... + 22222506.

It is an arithmetic number, because the mean of its divisors is an integer number (311114258).

Almost surely, 2^2666693580 is an apocalyptic number.

2666693580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2666693580 is an abundant number, since it is smaller than the sum of its proper divisors (4800048612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2666693580 is a wasteful number, since it uses less digits than its factorization.

2666693580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44444905 (or 44444903 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 51.

The square root of 2666693580 is about 51640.0385360042. The cubic root of 2666693580 is about 1386.7272138513.

The spelling of 2666693580 in words is "two billion, six hundred sixty-six million, six hundred ninety-three thousand, five hundred eighty".