666462120 has 64 divisors (see below), whose sum is σ = 2001456000. Its totient is φ = 177539328.

The previous prime is 666462103. The next prime is 666462131. The reversal of 666462120 is 21264666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145221 + ... + 149739.

It is an arithmetic number, because the mean of its divisors is an integer number (31272750).

Almost surely, 2^666462120 is an apocalyptic number.

666462120 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

666462120 is an abundant number, since it is smaller than the sum of its proper divisors (1334993880).

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

666462120 is a wasteful number, since it uses less digits than its factorization.

666462120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5762 (or 5758 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 666462120 is about 25815.9276416711. The cubic root of 666462120 is about 873.4911116112.

The spelling of 666462120 in words is "six hundred sixty-six million, four hundred sixty-two thousand, one hundred twenty".