666567468 has 72 divisors (see below), whose sum is σ = 1996979712. Its totient is φ = 190445904.

The previous prime is 666567403. The next prime is 666567479. The reversal of 666567468 is 864765666.

666567468 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42180 + ... + 55787.

Almost surely, 2^666567468 is an apocalyptic number.

It is an amenable number.

666567468 is an abundant number, since it is smaller than the sum of its proper divisors (1330412244).

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

666567468 is a wasteful number, since it uses less digits than its factorization.

666567468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97993 (or 97979 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 54.

The square root of 666567468 is about 25817.9679293317. The cubic root of 666567468 is about 873.5371335784.

The spelling of 666567468 in words is "six hundred sixty-six million, five hundred sixty-seven thousand, four hundred sixty-eight".