16159993407 has 12 divisors (see below), whose sum is σ = 24357091824. Its totient is φ = 10304923200.

The previous prime is 16159993393. The next prime is 16159993439. The reversal of 16159993407 is 70439995161.

16159993407 is a `hidden beast` number, since 1 + 6 + 1 + 599 + 9 + 3 + 40 + 7 = 666.

It is not a de Polignac number, because 16159993407 - 2⁴ = 16159993391 is a prime.

It is a super-2 number, since 2×16159993407² (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 (16159993477) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39033594 + ... + 39034007.

It is an arithmetic number, because the mean of its divisors is an integer number (2029757652).

Almost surely, 2^16159993407 is an apocalyptic number.

16159993407 is a deficient number, since it is larger than the sum of its proper divisors (8197098417).

16159993407 is a wasteful number, since it uses less digits than its factorization.

16159993407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78067630 (or 78067627 counting only the distinct ones).

The product of its (nonzero) digits is 1837080, while the sum is 54.

It can be divided in two parts, 16159993 and 407, that added together give a square (16160400 = 4020²).

The spelling of 16159993407 in words is "sixteen billion, one hundred fifty-nine million, nine hundred ninety-three thousand, four hundred seven".