16451551134727 has 4 divisors (see below), whose sum is σ = 16546646806200. Its totient is φ = 16356455463256.

The previous prime is 16451551134713. The next prime is 16451551134761. The reversal of 16451551134727 is 72743115515461.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16451551134727 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 (16451551134797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47547835477 + ... + 47547835822.

It is an arithmetic number, because the mean of its divisors is an integer number (4136661701550).

Almost surely, 2^{16451551134727} is an apocalyptic number.

16451551134727 is a deficient number, since it is larger than the sum of its proper divisors (95095671473).

16451551134727 is an equidigital number, since it uses as much as digits as its factorization.

16451551134727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95095671472.

The product of its digits is 3528000, while the sum is 52.

The spelling of 16451551134727 in words is "sixteen trillion, four hundred fifty-one billion, five hundred fifty-one million, one hundred thirty-four thousand, seven hundred twenty-seven".