16161607579 has 16 divisors (see below), whose sum is σ = 17476238304. Its totient is φ = 14857286400.

The previous prime is 16161607559. The next prime is 16161607589. The reversal of 16161607579 is 97570616161.

It is a cyclic number.

It is not a de Polignac number, because 16161607579 - 2¹³ = 16161599387 is a prime.

It is a super-2 number, since 2×16161607579² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16161607559) 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, 6164889 + ... + 6167509.

It is an arithmetic number, because the mean of its divisors is an integer number (1092264894).

Almost surely, 2^16161607579 is an apocalyptic number.

16161607579 is a deficient number, since it is larger than the sum of its proper divisors (1314630725).

16161607579 is a wasteful number, since it uses less digits than its factorization.

16161607579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4398.

The product of its (nonzero) digits is 476280, while the sum is 49.

The spelling of 16161607579 in words is "sixteen billion, one hundred sixty-one million, six hundred seven thousand, five hundred seventy-nine".