16155797 has 16 divisors (see below), whose sum is σ = 19722240. Its totient is φ = 12918528.

The previous prime is 16155787. The next prime is 16155803. The reversal of 16155797 is 79755161.

16155797 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16155797 - 2⁴ = 16155781 is a prime.

It is a super-2 number, since 2×16155797² = 522019553410418, which contains 22 as substring.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16155787) 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, 14579 + ... + 15647.

It is an arithmetic number, because the mean of its divisors is an integer number (1232640).

Almost surely, 2^16155797 is an apocalyptic number.

16155797 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

16155797 is a deficient number, since it is larger than the sum of its proper divisors (3566443).

16155797 is a wasteful number, since it uses less digits than its factorization.

16155797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1220.

The product of its digits is 66150, while the sum is 41.

The square root of 16155797 is about 4019.4274467889. The cubic root of 16155797 is about 252.7994525855.

The spelling of 16155797 in words is "sixteen million, one hundred fifty-five thousand, seven hundred ninety-seven".