16722645272 has 16 divisors (see below), whose sum is σ = 33199369560. Its totient is φ = 7869480064.

The previous prime is 16722645263. The next prime is 16722645281. The reversal of 16722645272 is 27254622761.

It is an interprime number because it is at equal distance from previous prime (16722645263) and next prime (16722645281).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61480178 + ... + 61480449.

Almost surely, 2^16722645272 is an apocalyptic number.

It is an amenable number.

16722645272 is a deficient number, since it is larger than the sum of its proper divisors (16476724288).

16722645272 is a wasteful number, since it uses less digits than its factorization.

16722645272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122960650 (or 122960646 counting only the distinct ones).

The product of its digits is 564480, while the sum is 44.

The spelling of 16722645272 in words is "sixteen billion, seven hundred twenty-two million, six hundred forty-five thousand, two hundred seventy-two".