2666003972 has 24 divisors (see below), whose sum is σ = 4757665920. Its totient is φ = 1306795680.

The previous prime is 2666003953. The next prime is 2666003987. The reversal of 2666003972 is 2793006662.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71222 + ... + 102002.

It is an arithmetic number, because the mean of its divisors is an integer number (198236080).

Almost surely, 2^2666003972 is an apocalyptic number.

It is an amenable number.

2666003972 is a deficient number, since it is larger than the sum of its proper divisors (2091661948).

2666003972 is a wasteful number, since it uses less digits than its factorization.

2666003972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31211 (or 31209 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 41.

The square root of 2666003972 is about 51633.3610372209. The cubic root of 2666003972 is about 1386.6076674797.

The spelling of 2666003972 in words is "two billion, six hundred sixty-six million, three thousand, nine hundred seventy-two".