20828655302 has 24 divisors (see below), whose sum is σ = 39139563456. Its totient is φ = 8239907088.

The previous prime is 20828655293. The next prime is 20828655343. The reversal of 20828655302 is 20355682802.

It is a super-2 number, since 2×20828655302² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 20828655302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8173238 + ... + 8175785.

It is an arithmetic number, because the mean of its divisors is an integer number (1630815144).

Almost surely, 2^20828655302 is an apocalyptic number.

20828655302 is a deficient number, since it is larger than the sum of its proper divisors (18310908154).

20828655302 is a wasteful number, since it uses less digits than its factorization.

20828655302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16349052 (or 16349045 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 41.

The spelling of 20828655302 in words is "twenty billion, eight hundred twenty-eight million, six hundred fifty-five thousand, three hundred two".