20346600028 has 12 divisors (see below), whose sum is σ = 35615019160. Its totient is φ = 10170880272.

The previous prime is 20346600019. The next prime is 20346600037. The reversal of 20346600028 is 82000664302.

It is an interprime number because it is at equal distance from previous prime (20346600019) and next prime (20346600037).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 585951 + ... + 619702.

Almost surely, 2^20346600028 is an apocalyptic number.

It is an amenable number.

20346600028 is a deficient number, since it is larger than the sum of its proper divisors (15268419132).

20346600028 is a wasteful number, since it uses less digits than its factorization.

20346600028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1209876 (or 1209874 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The spelling of 20346600028 in words is "twenty billion, three hundred forty-six million, six hundred thousand, twenty-eight".