2666131604 has 24 divisors (see below), whose sum is σ = 4929456000. Its totient is φ = 1258234560.

The previous prime is 2666131583. The next prime is 2666131631. The reversal of 2666131604 is 4061316662.

It is a super-2 number, since 2×2666131604² = 14216515459695225632, which contains 22 as substring.

It is a congruent number.

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, 44129 + ... + 85320.

It is an arithmetic number, because the mean of its divisors is an integer number (205394000).

Almost surely, 2^2666131604 is an apocalyptic number.

It is an amenable number.

2666131604 is a deficient number, since it is larger than the sum of its proper divisors (2263324396).

2666131604 is a wasteful number, since it uses less digits than its factorization.

2666131604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129743 (or 129741 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 2666131604 is about 51634.5969675372. The cubic root of 2666131604 is about 1386.6297945642.

The spelling of 2666131604 in words is "two billion, six hundred sixty-six million, one hundred thirty-one thousand, six hundred four".