66860232 has 16 divisors (see below), whose sum is σ = 167150640. Its totient is φ = 22286736.

The previous prime is 66860231. The next prime is 66860263. The reversal of 66860232 is 23206866.

It is a junction number, because it is equal to n+sod(n) for n = 66860193 and 66860202.

It is not an unprimeable number, because it can be changed into a prime (66860231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1392898 + ... + 1392945.

It is an arithmetic number, because the mean of its divisors is an integer number (10446915).

Almost surely, 2^66860232 is an apocalyptic number.

It is an amenable number.

66860232 is an abundant number, since it is smaller than the sum of its proper divisors (100290408).

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

66860232 is a wasteful number, since it uses less digits than its factorization.

66860232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2785852 (or 2785848 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 66860232 is about 8176.8106251765. The cubic root of 66860232 is about 405.8721883267.

The spelling of 66860232 in words is "sixty-six million, eight hundred sixty thousand, two hundred thirty-two".