66826160 has 20 divisors (see below), whose sum is σ = 155371008. Its totient is φ = 26730432.

The previous prime is 66826159. The next prime is 66826183. The reversal of 66826160 is 6162866.

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 66826160.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 417584 + ... + 417743.

Almost surely, 2^66826160 is an apocalyptic number.

It is an amenable number.

66826160 is an abundant number, since it is smaller than the sum of its proper divisors (88544848).

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

66826160 is a wasteful number, since it uses less digits than its factorization.

66826160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835340 (or 835334 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 66826160 is about 8174.7269067535. The cubic root of 66826160 is about 405.8032324042.

The spelling of 66826160 in words is "sixty-six million, eight hundred twenty-six thousand, one hundred sixty".