16277855801 has 4 divisors (see below), whose sum is σ = 16280934132. Its totient is φ = 16274777472.

The previous prime is 16277855767. The next prime is 16277855809. The reversal of 16277855801 is 10855877261.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4796947600 + 11480908201 = 69260^2 + 107149^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16277855801 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16277855801.

It is not an unprimeable number, because it can be changed into a prime (16277855809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1531220 + ... + 1541813.

It is an arithmetic number, because the mean of its divisors is an integer number (4070233533).

Almost surely, 2^16277855801 is an apocalyptic number.

It is an amenable number.

16277855801 is a deficient number, since it is larger than the sum of its proper divisors (3078331).

16277855801 is an equidigital number, since it uses as much as digits as its factorization.

16277855801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3078330.

The product of its (nonzero) digits is 940800, while the sum is 50.

The spelling of 16277855801 in words is "sixteen billion, two hundred seventy-seven million, eight hundred fifty-five thousand, eight hundred one".