15940090011 has 16 divisors (see below), whose sum is σ = 21619980320. Its totient is φ = 10443755520.

The previous prime is 15940089961. The next prime is 15940090031. The reversal of 15940090011 is 11009004951.

It is not a de Polignac number, because 15940090011 - 2²⁷ = 15805872283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15940090031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186075 + ... + 257883.

It is an arithmetic number, because the mean of its divisors is an integer number (1351248770).

Almost surely, 2^15940090011 is an apocalyptic number.

15940090011 is a deficient number, since it is larger than the sum of its proper divisors (5679890309).

15940090011 is a wasteful number, since it uses less digits than its factorization.

15940090011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73086.

The product of its (nonzero) digits is 1620, while the sum is 30.

Adding to 15940090011 its reverse (11009004951), we get a palindrome (26949094962).

The spelling of 15940090011 in words is "fifteen billion, nine hundred forty million, ninety thousand, eleven".