16155471770864 has 20 divisors (see below), whose sum is σ = 31301290536360. Its totient is φ = 8077719374400.

The previous prime is 16155471770843. The next prime is 16155471770869. The reversal of 16155471770864 is 46807717455161.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 16155471770797 and 16155471770806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16155471770869) 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, 12119039 + ... + 13385889.

It is an arithmetic number, because the mean of its divisors is an integer number (1565064526818).

Almost surely, 2^{16155471770864} is an apocalyptic number.

It is an amenable number.

16155471770864 is a deficient number, since it is larger than the sum of its proper divisors (15145818765496).

16155471770864 is a wasteful number, since it uses less digits than its factorization.

16155471770864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2063888 (or 2063882 counting only the distinct ones).

The product of its (nonzero) digits is 39513600, while the sum is 62.

The spelling of 16155471770864 in words is "sixteen trillion, one hundred fifty-five billion, four hundred seventy-one million, seven hundred seventy thousand, eight hundred sixty-four".