16421112742180 has 12 divisors (see below), whose sum is σ = 34484336758620. Its totient is φ = 6568445096864.

The previous prime is 16421112742169. The next prime is 16421112742183. The reversal of 16421112742180 is 8124721112461.

It can be written as a sum of positive squares in 2 ways, for example, as 9609764401444 + 6811348340736 = 3099962^2 + 2609856^2 .

It is not an unprimeable number, because it can be changed into a prime (16421112742183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 410527818535 + ... + 410527818574.

It is an arithmetic number, because the mean of its divisors is an integer number (2873694729885).

Almost surely, 2^{16421112742180} is an apocalyptic number.

16421112742180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16421112742180 is an abundant number, since it is smaller than the sum of its proper divisors (18063224016440).

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

16421112742180 is a wasteful number, since it uses less digits than its factorization.

16421112742180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821055637118 (or 821055637116 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 40.

The spelling of 16421112742180 in words is "sixteen trillion, four hundred twenty-one billion, one hundred twelve million, seven hundred forty-two thousand, one hundred eighty".