66883941 has 16 divisors (see below), whose sum is σ = 99422400. Its totient is φ = 44438544.

The previous prime is 66883939. The next prime is 66883951. The reversal of 66883941 is 14938866.

It is not a de Polignac number, because 66883941 - 2¹ = 66883939 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66883951) 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, 4255 + ... + 12323.

It is an arithmetic number, because the mean of its divisors is an integer number (6213900).

Almost surely, 2^66883941 is an apocalyptic number.

It is an amenable number.

66883941 is a deficient number, since it is larger than the sum of its proper divisors (32538459).

66883941 is a wasteful number, since it uses less digits than its factorization.

66883941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8385 (or 8379 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 66883941 is about 8178.2602673185. The cubic root of 66883941 is about 405.9201574817.

The spelling of 66883941 in words is "sixty-six million, eight hundred eighty-three thousand, nine hundred forty-one".