16551572070 has 128 divisors (see below), whose sum is σ = 43815582720. Its totient is φ = 3968276480.

The previous prime is 16551572069. The next prime is 16551572077. The reversal of 16551572070 is 7027515561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16551572077) 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 63 ways as a sum of consecutive naturals, for example, 12839986 + ... + 12841274.

It is an arithmetic number, because the mean of its divisors is an integer number (342309240).

Almost surely, 2^16551572070 is an apocalyptic number.

16551572070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16551572070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21907791360).

16551572070 is an abundant number, since it is smaller than the sum of its proper divisors (27264010650).

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

16551572070 is a wasteful number, since it uses less digits than its factorization.

16551572070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1710.

The product of its (nonzero) digits is 73500, while the sum is 39.

The spelling of 16551572070 in words is "sixteen billion, five hundred fifty-one million, five hundred seventy-two thousand, seventy".