16207532491 has 2 divisors, whose sum is σ = 16207532492. Its totient is φ = 16207532490.

The previous prime is 16207532477. The next prime is 16207532501. The reversal of 16207532491 is 19423570261.

It is a happy number.

16207532491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16207532491 - 2¹³ = 16207524299 is a prime.

It is not a weakly prime, because it can be changed into another prime (16207532461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8103766245 + 8103766246.

It is an arithmetic number, because the mean of its divisors is an integer number (8103766246).

Almost surely, 2^16207532491 is an apocalyptic number.

16207532491 is a deficient number, since it is larger than the sum of its proper divisors (1).

16207532491 is an equidigital number, since it uses as much as digits as its factorization.

16207532491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 40.

The spelling of 16207532491 in words is "sixteen billion, two hundred seven million, five hundred thirty-two thousand, four hundred ninety-one".