15846161813 has 16 divisors (see below), whose sum is σ = 16601815296. Its totient is φ = 15109785600.

The previous prime is 15846161809. The next prime is 15846161827. The reversal of 15846161813 is 31816164851.

It is not a de Polignac number, because 15846161813 - 2² = 15846161809 is a prime.

It is a super-2 number, since 2×15846161813² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15846161843) 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, 800645 + ... + 820197.

It is an arithmetic number, because the mean of its divisors is an integer number (1037613456).

Almost surely, 2^15846161813 is an apocalyptic number.

It is an amenable number.

15846161813 is a deficient number, since it is larger than the sum of its proper divisors (755653483).

15846161813 is a wasteful number, since it uses less digits than its factorization.

15846161813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20044.

The product of its digits is 138240, while the sum is 44.

The spelling of 15846161813 in words is "fifteen billion, eight hundred forty-six million, one hundred sixty-one thousand, eight hundred thirteen".