20616612 has 48 divisors (see below), whose sum is σ = 50115072. Its totient is φ = 6589440.

The previous prime is 20616601. The next prime is 20616623. The reversal of 20616612 is 21661602.

It is an interprime number because it is at equal distance from previous prime (20616601) and next prime (20616623).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58228 + ... + 58580.

It is an arithmetic number, because the mean of its divisors is an integer number (1044064).

Almost surely, 2^20616612 is an apocalyptic number.

It is an amenable number.

20616612 is an abundant number, since it is smaller than the sum of its proper divisors (29498460).

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

20616612 is a wasteful number, since it uses less digits than its factorization.

20616612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548 (or 546 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 20616612 is about 4540.5519488274. The cubic root of 20616612 is about 274.2031455646.

The spelling of 20616612 in words is "twenty million, six hundred sixteen thousand, six hundred twelve".