20700616 has 16 divisors (see below), whose sum is σ = 38862000. Its totient is φ = 10337424.

The previous prime is 20700593. The next prime is 20700623. The reversal of 20700616 is 61600702.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11335 + ... + 13033.

It is an arithmetic number, because the mean of its divisors is an integer number (2428875).

Almost surely, 2^20700616 is an apocalyptic number.

It is an amenable number.

20700616 is a deficient number, since it is larger than the sum of its proper divisors (18161384).

20700616 is a wasteful number, since it uses less digits than its factorization.

20700616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3228 (or 3224 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 20700616 is about 4549.7929623226. The cubic root of 20700616 is about 274.5750616168.

It can be divided in two parts, 20700 and 616, that added together give a square (21316 = 146²).

The spelling of 20700616 in words is "twenty million, seven hundred thousand, six hundred sixteen".