74561516 has 12 divisors (see below), whose sum is σ = 130782960. Its totient is φ = 37194960.

The previous prime is 74561503. The next prime is 74561521. The reversal of 74561516 is 61516547.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19475 + ... + 22986.

It is an arithmetic number, because the mean of its divisors is an integer number (10898580).

Almost surely, 2^74561516 is an apocalyptic number.

It is an amenable number.

74561516 is a deficient number, since it is larger than the sum of its proper divisors (56221444).

74561516 is a wasteful number, since it uses less digits than its factorization.

74561516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42904 (or 42902 counting only the distinct ones).

The product of its digits is 25200, while the sum is 35.

The square root of 74561516 is about 8634.9010417028. The cubic root of 74561516 is about 420.8928775096.

The spelling of 74561516 in words is "seventy-four million, five hundred sixty-one thousand, five hundred sixteen".