16496426991 has 32 divisors (see below), whose sum is σ = 24646735872. Its totient is φ = 9727976160.

The previous prime is 16496426983. The next prime is 16496427029. The reversal of 16496426991 is 19962469461.

It is not a de Polignac number, because 16496426991 - 2³ = 16496426983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16496424991) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 351096 + ... + 395298.

It is an arithmetic number, because the mean of its divisors is an integer number (770210496).

Almost surely, 2^16496426991 is an apocalyptic number.

16496426991 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

16496426991 is a deficient number, since it is larger than the sum of its proper divisors (8150308881).

16496426991 is a wasteful number, since it uses less digits than its factorization.

16496426991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44523.

The product of its digits is 5038848, while the sum is 57.

The spelling of 16496426991 in words is "sixteen billion, four hundred ninety-six million, four hundred twenty-six thousand, nine hundred ninety-one".