666414463 has 16 divisors (see below), whose sum is σ = 790689312. Its totient is φ = 553680000.

The previous prime is 666414407. The next prime is 666414479. The reversal of 666414463 is 364414666.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-666414463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666414163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8628 + ... + 37513.

It is an arithmetic number, because the mean of its divisors is an integer number (49418082).

Almost surely, 2^666414463 is an apocalyptic number.

666414463 is a deficient number, since it is larger than the sum of its proper divisors (124274849).

666414463 is a wasteful number, since it uses less digits than its factorization.

666414463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46266.

The product of its digits is 248832, while the sum is 40.

The square root of 666414463 is about 25815.0046097226. The cubic root of 666414463 is about 873.4702907438.

The spelling of 666414463 in words is "six hundred sixty-six million, four hundred fourteen thousand, four hundred sixty-three".