2666388045 has 32 divisors (see below), whose sum is σ = 4466202624. Its totient is φ = 1355816000.

The previous prime is 2666388041. The next prime is 2666388083. The reversal of 2666388045 is 5408836662.

It is not a de Polignac number, because 2666388045 - 2² = 2666388041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2666387985 and 2666388003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2666388041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 94870 + ... + 119720.

It is an arithmetic number, because the mean of its divisors is an integer number (139568832).

Almost surely, 2^2666388045 is an apocalyptic number.

It is an amenable number.

2666388045 is a deficient number, since it is larger than the sum of its proper divisors (1799814579).

2666388045 is a wasteful number, since it uses less digits than its factorization.

2666388045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25193.

The product of its (nonzero) digits is 1658880, while the sum is 48.

The square root of 2666388045 is about 51637.0801362742. The cubic root of 2666388045 is about 1386.6742506507.

The spelling of 2666388045 in words is "two billion, six hundred sixty-six million, three hundred eighty-eight thousand, forty-five".