16155462391 has 2 divisors, whose sum is σ = 16155462392. Its totient is φ = 16155462390.

The previous prime is 16155462383. The next prime is 16155462431. The reversal of 16155462391 is 19326455161.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16155462391 - 2³ = 16155462383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16155462341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8077731195 + 8077731196.

It is an arithmetic number, because the mean of its divisors is an integer number (8077731196).

Almost surely, 2^16155462391 is an apocalyptic number.

16155462391 is a deficient number, since it is larger than the sum of its proper divisors (1).

16155462391 is an equidigital number, since it uses as much as digits as its factorization.

16155462391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 194400, while the sum is 43.

The spelling of 16155462391 in words is "sixteen billion, one hundred fifty-five million, four hundred sixty-two thousand, three hundred ninety-one".