21550160160620 has 96 divisors (see below), whose sum is σ = 55708206962688. Its totient is φ = 6819127840512.

The previous prime is 21550160160611. The next prime is 21550160160623. The reversal of 21550160160620 is 2606106105512.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is not an unprimeable number, because it can be changed into a prime (21550160160623) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9907469 + ... + 11885211.

It is an arithmetic number, because the mean of its divisors is an integer number (580293822528).

Almost surely, 2^{21550160160620} is an apocalyptic number.

21550160160620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21550160160620 is an abundant number, since it is smaller than the sum of its proper divisors (34158046802068).

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

21550160160620 is a wasteful number, since it uses less digits than its factorization.

21550160160620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1983759 (or 1983757 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 35.

The spelling of 21550160160620 in words is "twenty-one trillion, five hundred fifty billion, one hundred sixty million, one hundred sixty thousand, six hundred twenty".