66801334 has 16 divisors (see below), whose sum is σ = 102421440. Its totient is φ = 32666760.

The previous prime is 66801331. The next prime is 66801349. The reversal of 66801334 is 43310866.

It is a junction number, because it is equal to n+sod(n) for n = 66801296 and 66801305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66801331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23557 + ... + 26239.

It is an arithmetic number, because the mean of its divisors is an integer number (6401340).

Almost surely, 2^66801334 is an apocalyptic number.

66801334 is a deficient number, since it is larger than the sum of its proper divisors (35620106).

66801334 is a wasteful number, since it uses less digits than its factorization.

66801334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2955.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 66801334 is about 8173.2083051884. The cubic root of 66801334 is about 405.7529740479.

The spelling of 66801334 in words is "sixty-six million, eight hundred one thousand, three hundred thirty-four".