16879680081 has 24 divisors (see below), whose sum is σ = 26745264000. Its totient is φ = 10173578400.

The previous prime is 16879680071. The next prime is 16879680101. The reversal of 16879680081 is 18008697861.

It is not a de Polignac number, because 16879680081 - 2¹³ = 16879671889 is a prime.

It is a super-2 number, since 2×16879680081² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16879680031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 453081 + ... + 488918.

It is an arithmetic number, because the mean of its divisors is an integer number (1114386000).

Almost surely, 2^16879680081 is an apocalyptic number.

16879680081 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16879680081 is a deficient number, since it is larger than the sum of its proper divisors (9865583919).

16879680081 is a wasteful number, since it uses less digits than its factorization.

16879680081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942197 (or 942194 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 54.

The spelling of 16879680081 in words is "sixteen billion, eight hundred seventy-nine million, six hundred eighty thousand, eighty-one".