65042666 has 24 divisors (see below), whose sum is σ = 109858980. Its totient is φ = 28708416.

The previous prime is 65042657. The next prime is 65042683. The reversal of 65042666 is 66624056.

It can be written as a sum of positive squares in 2 ways, for example, as 49210225 + 15832441 = 7015^2 + 3979^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11390 + ... + 16118.

Almost surely, 2^65042666 is an apocalyptic number.

65042666 is a deficient number, since it is larger than the sum of its proper divisors (44816314).

65042666 is a wasteful number, since it uses less digits than its factorization.

65042666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4790 (or 4767 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 65042666 is about 8064.9033472200. The cubic root of 65042666 is about 402.1605300969.

The spelling of 65042666 in words is "sixty-five million, forty-two thousand, six hundred sixty-six".