16616720367 has 24 divisors (see below), whose sum is σ = 25856563824. Its totient is φ = 10222377984.

The previous prime is 16616720357. The next prime is 16616720381. The reversal of 16616720367 is 76302761661.

16616720367 is a `hidden beast` number, since 1 + 6 + 616 + 7 + 20 + 3 + 6 + 7 = 666.

It is not a de Polignac number, because 16616720367 - 2⁶ = 16616720303 is a prime.

It is a super-2 number, since 2×16616720367² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16616720357) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 370383 + ... + 412815.

It is an arithmetic number, because the mean of its divisors is an integer number (1077356826).

Almost surely, 2^16616720367 is an apocalyptic number.

16616720367 is a deficient number, since it is larger than the sum of its proper divisors (9239843457).

16616720367 is a wasteful number, since it uses less digits than its factorization.

16616720367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45799 (or 45796 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The spelling of 16616720367 in words is "sixteen billion, six hundred sixteen million, seven hundred twenty thousand, three hundred sixty-seven".