16397447233429 has 4 divisors (see below), whose sum is σ = 16495635540384. Its totient is φ = 16299258926476.

The previous prime is 16397447233423. The next prime is 16397447233451. The reversal of 16397447233429 is 92433274479361.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16397447233429 - 2¹⁵ = 16397447200661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16397447233423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49094153227 + ... + 49094153560.

It is an arithmetic number, because the mean of its divisors is an integer number (4123908885096).

Almost surely, 2^{16397447233429} is an apocalyptic number.

It is an amenable number.

16397447233429 is a deficient number, since it is larger than the sum of its proper divisors (98188306955).

16397447233429 is an equidigital number, since it uses as much as digits as its factorization.

16397447233429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98188306954.

The product of its digits is 164602368, while the sum is 64.

The spelling of 16397447233429 in words is "sixteen trillion, three hundred ninety-seven billion, four hundred forty-seven million, two hundred thirty-three thousand, four hundred twenty-nine".