16256452020 has 24 divisors (see below), whose sum is σ = 45518065824. Its totient is φ = 4335053856.

The previous prime is 16256452013. The next prime is 16256452021. The reversal of 16256452020 is 2025465261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16256452021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135470374 + ... + 135470493.

It is an arithmetic number, because the mean of its divisors is an integer number (1896586076).

Almost surely, 2^16256452020 is an apocalyptic number.

16256452020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16256452020 is an abundant number, since it is smaller than the sum of its proper divisors (29261613804).

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

16256452020 is a wasteful number, since it uses less digits than its factorization.

16256452020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270940879 (or 270940877 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The spelling of 16256452020 in words is "sixteen billion, two hundred fifty-six million, four hundred fifty-two thousand, twenty".