20702834655516 has 96 divisors (see below), whose sum is σ = 60315950929920. Its totient is φ = 6093141962688.

The previous prime is 20702834655469. The next prime is 20702834655523. The reversal of 20702834655516 is 61555643820702.

20702834655516 is a `hidden beast` number, since 2 + 0 + 7 + 0 + 2 + 83 + 4 + 6 + 5 + 551 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 320524420 + ... + 320589003.

It is an arithmetic number, because the mean of its divisors is an integer number (628291155520).

Almost surely, 2^{20702834655516} is an apocalyptic number.

20702834655516 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

20702834655516 is an abundant number, since it is smaller than the sum of its proper divisors (39613116274404).

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

20702834655516 is a wasteful number, since it uses less digits than its factorization.

20702834655516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641113472 (or 641113464 counting only the distinct ones).

The product of its (nonzero) digits is 12096000, while the sum is 54.

The spelling of 20702834655516 in words is "twenty trillion, seven hundred two billion, eight hundred thirty-four million, six hundred fifty-five thousand, five hundred sixteen".