16141237991 has 2 divisors, whose sum is σ = 16141237992. Its totient is φ = 16141237990.

The previous prime is 16141237963. The next prime is 16141238021. The reversal of 16141237991 is 19973214161.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16141237991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16141237891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8070618995 + 8070618996.

It is an arithmetic number, because the mean of its divisors is an integer number (8070618996).

Almost surely, 2^16141237991 is an apocalyptic number.

16141237991 is a deficient number, since it is larger than the sum of its proper divisors (1).

16141237991 is an equidigital number, since it uses as much as digits as its factorization.

16141237991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81648, while the sum is 44.

The spelling of 16141237991 in words is "sixteen billion, one hundred forty-one million, two hundred thirty-seven thousand, nine hundred ninety-one".