66771496 has 16 divisors (see below), whose sum is σ = 136578240. Its totient is φ = 30350640.

The previous prime is 66771473. The next prime is 66771521. The reversal of 66771496 is 69417766.

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, 379296 + ... + 379471.

It is an arithmetic number, because the mean of its divisors is an integer number (8536140).

Almost surely, 2^66771496 is an apocalyptic number.

It is an amenable number.

66771496 is an abundant number, since it is smaller than the sum of its proper divisors (69806744).

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

66771496 is a wasteful number, since it uses less digits than its factorization.

66771496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758784 (or 758780 counting only the distinct ones).

The product of its digits is 381024, while the sum is 46.

The square root of 66771496 is about 8171.3827471243. The cubic root of 66771496 is about 405.6925527981.

The spelling of 66771496 in words is "sixty-six million, seven hundred seventy-one thousand, four hundred ninety-six".