20066612 has 6 divisors (see below), whose sum is σ = 35116578. Its totient is φ = 10033304.

The previous prime is 20066611. The next prime is 20066623. The reversal of 20066612 is 21666002.

It can be written as a sum of positive squares in only one way, i.e., 18438436 + 1628176 = 4294^2 + 1276^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20066611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2508323 + ... + 2508330.

It is an arithmetic number, because the mean of its divisors is an integer number (5852763).

Almost surely, 2^20066612 is an apocalyptic number.

It is an amenable number.

20066612 is a deficient number, since it is larger than the sum of its proper divisors (15049966).

20066612 is a wasteful number, since it uses less digits than its factorization.

20066612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5016657 (or 5016655 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 20066612 is about 4479.5772121931. The cubic root of 20066612 is about 271.7427823570.

The spelling of 20066612 in words is "twenty million, sixty-six thousand, six hundred twelve".