66941874 has 12 divisors (see below), whose sum is σ = 145040766. Its totient is φ = 22313952.

The previous prime is 66941873. The next prime is 66941893. The reversal of 66941874 is 47814966.

It can be written as a sum of positive squares in only one way, i.e., 46826649 + 20115225 = 6843^2 + 4485^2 .

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (66941873) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1859479 + ... + 1859514.

Almost surely, 2^66941874 is an apocalyptic number.

66941874 is an abundant number, since it is smaller than the sum of its proper divisors (78098892).

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

66941874 is a wasteful number, since it uses less digits than its factorization.

66941874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3719001 (or 3718998 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 66941874 is about 8181.8013908919. The cubic root of 66941874 is about 406.0373225576.

The spelling of 66941874 in words is "sixty-six million, nine hundred forty-one thousand, eight hundred seventy-four".