66883701 has 16 divisors (see below), whose sum is σ = 93542400. Its totient is φ = 42427440.

The previous prime is 66883693. The next prime is 66883711. The reversal of 66883701 is 10738866.

It is not a de Polignac number, because 66883701 - 2³ = 66883693 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66883701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66883711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11296 + ... + 16166.

It is an arithmetic number, because the mean of its divisors is an integer number (5846400).

Almost surely, 2^66883701 is an apocalyptic number.

It is an amenable number.

66883701 is a deficient number, since it is larger than the sum of its proper divisors (26658699).

66883701 is a wasteful number, since it uses less digits than its factorization.

66883701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5096.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 66883701 is about 8178.2455942580. The cubic root of 66883701 is about 405.9196719593.

The spelling of 66883701 in words is "sixty-six million, eight hundred eighty-three thousand, seven hundred one".