20677016 has 16 divisors (see below), whose sum is σ = 40810200. Its totient is φ = 9794304.

The previous prime is 20677003. The next prime is 20677037. The reversal of 20677016 is 61077602.

It is a self number, because there is not a number n which added to its sum of digits gives 20677016.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67865 + ... + 68168.

Almost surely, 2^20677016 is an apocalyptic number.

It is an amenable number.

20677016 is a deficient number, since it is larger than the sum of its proper divisors (20133184).

20677016 is a wasteful number, since it uses less digits than its factorization.

20677016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136058 (or 136054 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 20677016 is about 4547.1986980997. The cubic root of 20677016 is about 274.4706776774.

The spelling of 20677016 in words is "twenty million, six hundred seventy-seven thousand, sixteen".