16055711220520 has 64 divisors (see below), whose sum is σ = 36209206051200. Its totient is φ = 6407393498880.

The previous prime is 16055711220509. The next prime is 16055711220557. The reversal of 16055711220520 is 2502211755061.

It is a self number, because there is not a number n which added to its sum of digits gives 16055711220520.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30593691 + ... + 31114069.

It is an arithmetic number, because the mean of its divisors is an integer number (565768844550).

Almost surely, 2^{16055711220520} is an apocalyptic number.

16055711220520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16055711220520 is an abundant number, since it is smaller than the sum of its proper divisors (20153494830680).

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

16055711220520 is a wasteful number, since it uses less digits than its factorization.

16055711220520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522178 (or 522174 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 37.

Adding to 16055711220520 its reverse (2502211755061), we get a palindrome (18557922975581).

The spelling of 16055711220520 in words is "sixteen trillion, fifty-five billion, seven hundred eleven million, two hundred twenty thousand, five hundred twenty".