20655860000160 has 384 divisors, whose sum is σ = 81175530240000. Its totient is φ = 4289251921920.

The previous prime is 20655860000141. The next prime is 20655860000189. The reversal of 20655860000160 is 6100006855602.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 55216626 + ... + 55589454.

It is an arithmetic number, because the mean of its divisors is an integer number (211394610000).

Almost surely, 2^{20655860000160} is an apocalyptic number.

20655860000160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20655860000160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40587765120000).

20655860000160 is an abundant number, since it is smaller than the sum of its proper divisors (60519670239840).

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

20655860000160 is a wasteful number, since it uses less digits than its factorization.

20655860000160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374364 (or 374356 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 39.

Adding to 20655860000160 its reverse (6100006855602), we get a palindrome (26755866855762).

The spelling of 20655860000160 in words is "twenty trillion, six hundred fifty-five billion, eight hundred sixty million, one hundred sixty", and thus it is an aban number.