16334600778453 has 4 divisors (see below), whose sum is σ = 21779467704608. Its totient is φ = 10889733852300.

The previous prime is 16334600778451. The next prime is 16334600778499. The reversal of 16334600778453 is 35487700643361.

It is a happy number.

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 not a de Polignac number, because 16334600778453 - 2¹ = 16334600778451 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16334600778393 and 16334600778402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16334600778451) 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, 2722433463073 + ... + 2722433463078.

It is an arithmetic number, because the mean of its divisors is an integer number (5444866926152).

Almost surely, 2^{16334600778453} is an apocalyptic number.

It is an amenable number.

16334600778453 is a deficient number, since it is larger than the sum of its proper divisors (5444866926155).

16334600778453 is an equidigital number, since it uses as much as digits as its factorization.

16334600778453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5444866926154.

The product of its (nonzero) digits is 30481920, while the sum is 57.

The spelling of 16334600778453 in words is "sixteen trillion, three hundred thirty-four billion, six hundred million, seven hundred seventy-eight thousand, four hundred fifty-three".