66670260 has 96 divisors (see below), whose sum is σ = 199366272. Its totient is φ = 16588800.

The previous prime is 66670213. The next prime is 66670267. The reversal of 66670260 is 6207666.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66670267) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 166060 + ... + 166460.

It is an arithmetic number, because the mean of its divisors is an integer number (2076732).

Almost surely, 2^66670260 is an apocalyptic number.

66670260 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66670260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99683136).

66670260 is an abundant number, since it is smaller than the sum of its proper divisors (132696012).

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

66670260 is a wasteful number, since it uses less digits than its factorization.

66670260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593 (or 591 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 66670260 is about 8165.1858521408. The cubic root of 66670260 is about 405.4874180337.

The spelling of 66670260 in words is "sixty-six million, six hundred seventy thousand, two hundred sixty".