16555720022 has 32 divisors (see below), whose sum is σ = 26348317632. Its totient is φ = 7786082304.

The previous prime is 16555720021. The next prime is 16555720073. The reversal of 16555720022 is 22002755561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16555720021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 688718 + ... + 712350.

It is an arithmetic number, because the mean of its divisors is an integer number (823384926).

Almost surely, 2^16555720022 is an apocalyptic number.

16555720022 is a deficient number, since it is larger than the sum of its proper divisors (9792597610).

16555720022 is a wasteful number, since it uses less digits than its factorization.

16555720022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23912.

The product of its (nonzero) digits is 42000, while the sum is 35.

The spelling of 16555720022 in words is "sixteen billion, five hundred fifty-five million, seven hundred twenty thousand, twenty-two".