16542788031220 has 24 divisors (see below), whose sum is σ = 37898023490208. Its totient is φ = 6015559284000.

The previous prime is 16542788031137. The next prime is 16542788031221. The reversal of 16542788031220 is 2213088724561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16542788031221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37597245306 + ... + 37597245745.

It is an arithmetic number, because the mean of its divisors is an integer number (1579084312092).

Almost surely, 2^{16542788031220} is an apocalyptic number.

16542788031220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16542788031220 is an abundant number, since it is smaller than the sum of its proper divisors (21355235458988).

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

16542788031220 is a wasteful number, since it uses less digits than its factorization.

16542788031220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75194491071 (or 75194491069 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 49.

The spelling of 16542788031220 in words is "sixteen trillion, five hundred forty-two billion, seven hundred eighty-eight million, thirty-one thousand, two hundred twenty".