744560690166 has 60 divisors (see below), whose sum is σ = 1675618470372. Its totient is φ = 248129829144.

The previous prime is 744560690143. The next prime is 744560690173. The reversal of 744560690166 is 661096065447.

744560690166 is a `hidden beast` number, since 7 + 4 + 4 + 560 + 69 + 0 + 16 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 171200560 + ... + 171204908.

Almost surely, 2^744560690166 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 744560690166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (837809235186).

744560690166 is an abundant number, since it is smaller than the sum of its proper divisors (931057780206).

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

744560690166 is an frugal number, since it uses more digits than its factorization.

744560690166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8727 (or 4354 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 54.

Multiplying 744560690166 by its sum of digits (54), we get a square (40206277268964 = 6340842²).

744560690166 divided by its sum of digits (54) gives a square (13788160929 = 117423²).

The spelling of 744560690166 in words is "seven hundred forty-four billion, five hundred sixty million, six hundred ninety thousand, one hundred sixty-six".