666741414 has 16 divisors (see below), whose sum is σ = 1336048560. Its totient is φ = 221819520.

The previous prime is 666741409. The next prime is 666741451. The reversal of 666741414 is 414147666.

It is a super-2 number, since 2×666741414² = 889088226285438792, which contains 22 as substring.

It is a congruent number.

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, 103519 + ... + 109770.

It is an arithmetic number, because the mean of its divisors is an integer number (83503035).

Almost surely, 2^666741414 is an apocalyptic number.

666741414 is an abundant number, since it is smaller than the sum of its proper divisors (669307146).

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

666741414 is a wasteful number, since it uses less digits than its factorization.

666741414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213815.

The product of its digits is 96768, while the sum is 39.

The square root of 666741414 is about 25821.3364100311. The cubic root of 666741414 is about 873.6131124213.

The spelling of 666741414 in words is "six hundred sixty-six million, seven hundred forty-one thousand, four hundred fourteen".