74105506660 has 12 divisors (see below), whose sum is σ = 155621564028. Its totient is φ = 29642202656.

The previous prime is 74105506649. The next prime is 74105506669. The reversal of 74105506660 is 6660550147.

It can be written as a sum of positive squares in 2 ways, for example, as 12667952704 + 61437553956 = 112552^2 + 247866^2 .

It is a super-2 number, since 2×74105506660² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74105506669) 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, 1852637647 + ... + 1852637686.

It is an arithmetic number, because the mean of its divisors is an integer number (12968463669).

Almost surely, 2^74105506660 is an apocalyptic number.

It is an amenable number.

74105506660 is an abundant number, since it is smaller than the sum of its proper divisors (81516057368).

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

74105506660 is a wasteful number, since it uses less digits than its factorization.

74105506660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3705275342 (or 3705275340 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 40.

The spelling of 74105506660 in words is "seventy-four billion, one hundred five million, five hundred six thousand, six hundred sixty".