16545126477419 has 2 divisors, whose sum is σ = 16545126477420. Its totient is φ = 16545126477418.

The previous prime is 16545126477409. The next prime is 16545126477443. The reversal of 16545126477419 is 91477462154561.

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-16545126477419 is a prime.

It is a super-2 number, since 2×16545126477419² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16545126477409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8272563238709 + 8272563238710.

It is an arithmetic number, because the mean of its divisors is an integer number (8272563238710).

Almost surely, 2^{16545126477419} is an apocalyptic number.

16545126477419 is a deficient number, since it is larger than the sum of its proper divisors (1).

16545126477419 is an equidigital number, since it uses as much as digits as its factorization.

16545126477419 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50803200, while the sum is 62.

The spelling of 16545126477419 in words is "sixteen trillion, five hundred forty-five billion, one hundred twenty-six million, four hundred seventy-seven thousand, four hundred nineteen".