66883071 has 8 divisors (see below), whose sum is σ = 89507584. Its totient is φ = 44423640.

The previous prime is 66883067. The next prime is 66883073. The reversal of 66883071 is 17038866.

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

It is not a de Polignac number, because 66883071 - 2² = 66883067 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66883073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40321 + ... + 41946.

It is an arithmetic number, because the mean of its divisors is an integer number (11188448).

Almost surely, 2^66883071 is an apocalyptic number.

66883071 is a deficient number, since it is larger than the sum of its proper divisors (22624513).

66883071 is a wasteful number, since it uses less digits than its factorization.

66883071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82541.

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

The square root of 66883071 is about 8178.2070773489. The cubic root of 66883071 is about 405.9183974575.

The spelling of 66883071 in words is "sixty-six million, eight hundred eighty-three thousand, seventy-one".