66882501 has 36 divisors (see below), whose sum is σ = 115026912. Its totient is φ = 37319184.

The previous prime is 66882433. The next prime is 66882523. The reversal of 66882501 is 10528866.

It is a happy number.

It is not a de Polignac number, because 66882501 - 2⁹ = 66881989 is a prime.

It is a Curzon number.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66882601) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 17200 + ... + 20726.

It is an arithmetic number, because the mean of its divisors is an integer number (3195192).

Almost surely, 2^66882501 is an apocalyptic number.

It is an amenable number.

66882501 is a deficient number, since it is larger than the sum of its proper divisors (48144411).

66882501 is a wasteful number, since it uses less digits than its factorization.

66882501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3590 (or 3580 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 66882501 is about 8178.1722285606. The cubic root of 66882501 is about 405.9172443299.

The spelling of 66882501 in words is "sixty-six million, eight hundred eighty-two thousand, five hundred one".