20066031 has 24 divisors (see below), whose sum is σ = 29787264. Its totient is φ = 13012560.

The previous prime is 20066027. The next prime is 20066041. The reversal of 20066031 is 13066002.

It is a happy number.

20066031 is a `hidden beast` number, since 2 + 0 + 0 + 660 + 3 + 1 = 666.

It is not a de Polignac number, because 20066031 - 2² = 20066027 is a prime.

It is a super-2 number, since 2×20066031² = 805291200185922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20065995 and 20066013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20066041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64366 + ... + 64676.

It is an arithmetic number, because the mean of its divisors is an integer number (1241136).

Almost surely, 2^20066031 is an apocalyptic number.

20066031 is a deficient number, since it is larger than the sum of its proper divisors (9721233).

20066031 is a wasteful number, since it uses less digits than its factorization.

20066031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491 (or 488 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 20066031 is about 4479.5123618537. The cubic root of 20066031 is about 271.7401596908.

The spelling of 20066031 in words is "twenty million, sixty-six thousand, thirty-one".