16551436771315 has 16 divisors (see below), whose sum is σ = 20142172302336. Its totient is φ = 13054197032800.

The previous prime is 16551436771313. The next prime is 16551436771321. The reversal of 16551436771315 is 51317763415561.

It is not a de Polignac number, because 16551436771315 - 2¹ = 16551436771313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16551436771313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9515250 + ... + 11119480.

It is an arithmetic number, because the mean of its divisors is an integer number (1258885768896).

Almost surely, 2^{16551436771315} is an apocalyptic number.

16551436771315 is a deficient number, since it is larger than the sum of its proper divisors (3590735531021).

16551436771315 is a wasteful number, since it uses less digits than its factorization.

16551436771315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1633370.

The product of its digits is 7938000, while the sum is 55.

The spelling of 16551436771315 in words is "sixteen trillion, five hundred fifty-one billion, four hundred thirty-six million, seven hundred seventy-one thousand, three hundred fifteen".