20066316 has 48 divisors (see below), whose sum is σ = 48330240. Its totient is φ = 6477120.

The previous prime is 20066297. The next prime is 20066317. The reversal of 20066316 is 61366002.

It is a super-7 number, since 7×20066316⁷ (a number of 52 digits) contains 7777777 as substring.

It is not an unprimeable number, because it can be changed into a prime (20066317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57655 + ... + 58001.

It is an arithmetic number, because the mean of its divisors is an integer number (1006880).

Almost surely, 2^20066316 is an apocalyptic number.

It is an amenable number.

20066316 is an abundant number, since it is smaller than the sum of its proper divisors (28263924).

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

20066316 is a wasteful number, since it uses less digits than its factorization.

20066316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494 (or 492 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 20066316 is about 4479.5441732391. The cubic root of 20066316 is about 271.7414462029.

The spelling of 20066316 in words is "twenty million, sixty-six thousand, three hundred sixteen".