16436090881 has 16 divisors (see below), whose sum is σ = 19627905024. Its totient is φ = 13456921104.

The previous prime is 16436090861. The next prime is 16436090887. The reversal of 16436090881 is 18809063461.

It is a cyclic number.

It is not a de Polignac number, because 16436090881 - 2⁹ = 16436090369 is a prime.

It is a super-2 number, since 2×16436090881² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16436090887) 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, 46836 + ... + 187258.

It is an arithmetic number, because the mean of its divisors is an integer number (1226744064).

Almost surely, 2^16436090881 is an apocalyptic number.

It is an amenable number.

16436090881 is a deficient number, since it is larger than the sum of its proper divisors (3191814143).

16436090881 is a wasteful number, since it uses less digits than its factorization.

16436090881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141180.

The product of its (nonzero) digits is 248832, while the sum is 46.

The spelling of 16436090881 in words is "sixteen billion, four hundred thirty-six million, ninety thousand, eight hundred eighty-one".