16720222752 has 72 divisors (see below), whose sum is σ = 47863146240. Its totient is φ = 5536483200.

The previous prime is 16720222711. The next prime is 16720222777. The reversal of 16720222752 is 25722202761.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 148752 + ... + 235727.

It is an arithmetic number, because the mean of its divisors is an integer number (664765920).

Almost surely, 2^16720222752 is an apocalyptic number.

16720222752 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16720222752 is an abundant number, since it is smaller than the sum of its proper divisors (31142923488).

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

16720222752 is a wasteful number, since it uses less digits than its factorization.

16720222752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384646 (or 384635 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The spelling of 16720222752 in words is "sixteen billion, seven hundred twenty million, two hundred twenty-two thousand, seven hundred fifty-two".