66896674 has 8 divisors (see below), whose sum is σ = 108063900. Its totient is φ = 30875376.

The previous prime is 66896671. The next prime is 66896699. The reversal of 66896674 is 47669866.

It can be written as a sum of positive squares in 2 ways, for example, as 66830625 + 66049 = 8175^2 + 257^2 .

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

It is not an unprimeable number, because it can be changed into a prime (66896671) 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, 1286449 + ... + 1286500.

Almost surely, 2^66896674 is an apocalyptic number.

66896674 is a deficient number, since it is larger than the sum of its proper divisors (41167226).

66896674 is a wasteful number, since it uses less digits than its factorization.

66896674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2572964.

The product of its digits is 2612736, while the sum is 52.

The square root of 66896674 is about 8179.0386965706. The cubic root of 66896674 is about 405.9459148027.

The spelling of 66896674 in words is "sixty-six million, eight hundred ninety-six thousand, six hundred seventy-four".