666451062 has 12 divisors (see below), whose sum is σ = 1443977340. Its totient is φ = 222150348.

The previous prime is 666451043. The next prime is 666451069. The reversal of 666451062 is 260154666.

It is a happy number.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666451069) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18512512 + ... + 18512547.

It is an arithmetic number, because the mean of its divisors is an integer number (120331445).

Almost surely, 2^666451062 is an apocalyptic number.

666451062 is an abundant number, since it is smaller than the sum of its proper divisors (777526278).

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

666451062 is a wasteful number, since it uses less digits than its factorization.

666451062 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37025067 (or 37025064 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 666451062 is about 25815.7134706752. The cubic root of 666451062 is about 873.4862805698.

The spelling of 666451062 in words is "six hundred sixty-six million, four hundred fifty-one thousand, sixty-two".