66023676 has 72 divisors (see below), whose sum is σ = 175046144. Its totient is φ = 20956320.

The previous prime is 66023669. The next prime is 66023701. The reversal of 66023676 is 67632066.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 66023676.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74331 + ... + 75213.

Almost surely, 2^66023676 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66023676, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87523072).

66023676 is an abundant number, since it is smaller than the sum of its proper divisors (109022468).

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

66023676 is a wasteful number, since it uses less digits than its factorization.

66023676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991 (or 986 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 36.

The square root of 66023676 is about 8125.4954310491. The cubic root of 66023676 is about 404.1723197188.

It can be divided in two parts, 660 and 23676, that added together give a square (24336 = 156²).

The spelling of 66023676 in words is "sixty-six million, twenty-three thousand, six hundred seventy-six".