16001783143091 has 2 divisors, whose sum is σ = 16001783143092. Its totient is φ = 16001783143090.

The previous prime is 16001783143013. The next prime is 16001783143207. The reversal of 16001783143091 is 19034138710061.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16001783143091 - 2²² = 16001778948787 is a prime.

It is a super-2 number, since 2×16001783143091² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16001783113091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8000891571545 + 8000891571546.

It is an arithmetic number, because the mean of its divisors is an integer number (8000891571546).

Almost surely, 2^{16001783143091} is an apocalyptic number.

16001783143091 is a deficient number, since it is larger than the sum of its proper divisors (1).

16001783143091 is an equidigital number, since it uses as much as digits as its factorization.

16001783143091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 44.

The spelling of 16001783143091 in words is "sixteen trillion, one billion, seven hundred eighty-three million, one hundred forty-three thousand, ninety-one".