266670668 has 24 divisors (see below), whose sum is σ = 519934464. Its totient is φ = 118634000.

The previous prime is 266670647. The next prime is 266670697. The reversal of 266670668 is 866076662.

266670668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×266670668² = 142226490343132448, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62408 + ... + 66543.

It is an arithmetic number, because the mean of its divisors is an integer number (21663936).

Almost surely, 2^266670668 is an apocalyptic number.

It is an amenable number.

266670668 is a deficient number, since it is larger than the sum of its proper divisors (253263796).

266670668 is a wasteful number, since it uses less digits than its factorization.

266670668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129013 (or 129011 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 47.

The square root of 266670668 is about 16330.0541334069. The cubic root of 266670668 is about 643.6628090917.

The spelling of 266670668 in words is "two hundred sixty-six million, six hundred seventy thousand, six hundred sixty-eight".