16396903377427 has 2 divisors, whose sum is σ = 16396903377428. Its totient is φ = 16396903377426.

The previous prime is 16396903377389. The next prime is 16396903377487. The reversal of 16396903377427 is 72477330969361.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16396903377427 - 2¹⁹ = 16396902853139 is a prime.

It is a super-2 number, since 2×16396903377427² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16396903377487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8198451688713 + 8198451688714.

It is an arithmetic number, because the mean of its divisors is an integer number (8198451688714).

Almost surely, 2^{16396903377427} is an apocalyptic number.

16396903377427 is a deficient number, since it is larger than the sum of its proper divisors (1).

16396903377427 is an equidigital number, since it uses as much as digits as its factorization.

16396903377427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216040608, while the sum is 67.

The spelling of 16396903377427 in words is "sixteen trillion, three hundred ninety-six billion, nine hundred three million, three hundred seventy-seven thousand, four hundred twenty-seven".