16722740427 has 16 divisors (see below), whose sum is σ = 23475980160. Its totient is φ = 10559270592.

The previous prime is 16722740383. The next prime is 16722740429. The reversal of 16722740427 is 72404722761.

It is not a de Polignac number, because 16722740427 - 2⁸ = 16722740171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16722740429) 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, 230503 + ... + 294239.

It is an arithmetic number, because the mean of its divisors is an integer number (1467248760).

Almost surely, 2^16722740427 is an apocalyptic number.

16722740427 is a deficient number, since it is larger than the sum of its proper divisors (6753239733).

16722740427 is a wasteful number, since it uses less digits than its factorization.

16722740427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68362.

The product of its (nonzero) digits is 263424, while the sum is 42.

The spelling of 16722740427 in words is "sixteen billion, seven hundred twenty-two million, seven hundred forty thousand, four hundred twenty-seven".