745747066 has 8 divisors (see below), whose sum is σ = 1119418740. Its totient is φ = 372607488.

The previous prime is 745747063. The next prime is 745747087. The reversal of 745747066 is 660747547.

It can be written as a sum of positive squares in 2 ways, for example, as 745563025 + 184041 = 27305^2 + 429^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×745747066² = 1112277372895216712, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (745747061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129501 + ... + 135136.

Almost surely, 2^745747066 is an apocalyptic number.

745747066 is a deficient number, since it is larger than the sum of its proper divisors (373671674).

745747066 is a wasteful number, since it uses less digits than its factorization.

745747066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266048.

The product of its (nonzero) digits is 987840, while the sum is 46.

The square root of 745747066 is about 27308.3698891018. The cubic root of 745747066 is about 906.8396858088.

The spelling of 745747066 in words is "seven hundred forty-five million, seven hundred forty-seven thousand, sixty-six".