16161206613 has 16 divisors (see below), whose sum is σ = 21925087680. Its totient is φ = 10586543616.

The previous prime is 16161206591. The next prime is 16161206617. The reversal of 16161206613 is 31660216161.

It is not a de Polignac number, because 16161206613 - 2⁶ = 16161206549 is a prime.

It is a super-2 number, since 2×16161206613² (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 (16161206617) 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, 21468 + ... + 181061.

It is an arithmetic number, because the mean of its divisors is an integer number (1370317980).

Almost surely, 2^16161206613 is an apocalyptic number.

It is an amenable number.

16161206613 is a deficient number, since it is larger than the sum of its proper divisors (5763881067).

16161206613 is a wasteful number, since it uses less digits than its factorization.

16161206613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202996.

The product of its (nonzero) digits is 7776, while the sum is 33.

The spelling of 16161206613 in words is "sixteen billion, one hundred sixty-one million, two hundred six thousand, six hundred thirteen".