745302666 has 16 divisors (see below), whose sum is σ = 1491426144. Its totient is φ = 248297424.

The previous prime is 745302653. The next prime is 745302673. The reversal of 745302666 is 666203547.

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, 22065 + ... + 44468.

It is an arithmetic number, because the mean of its divisors is an integer number (93214134).

Almost surely, 2^745302666 is an apocalyptic number.

745302666 is an abundant number, since it is smaller than the sum of its proper divisors (746123478).

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

745302666 is a wasteful number, since it uses less digits than its factorization.

745302666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68405.

The product of its (nonzero) digits is 181440, while the sum is 39.

The square root of 745302666 is about 27300.2319770364. The cubic root of 745302666 is about 906.6595176472.

The spelling of 745302666 in words is "seven hundred forty-five million, three hundred two thousand, six hundred sixty-six".