16155545 has 48 divisors (see below), whose sum is σ = 24427008. Its totient is φ = 10200960.

The previous prime is 16155541. The next prime is 16155551. The reversal of 16155545 is 54555161.

It is not a de Polignac number, because 16155545 - 2² = 16155541 is a prime.

It is a super-2 number, since 2×16155545² = 522003268494050, which contains 22 as substring.

It is a Duffinian number.

Its product of digits (15000) is a multiple of the sum of its prime factors (150).

It is not an unprimeable number, because it can be changed into a prime (16155541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 264815 + ... + 264875.

It is an arithmetic number, because the mean of its divisors is an integer number (508896).

Almost surely, 2^16155545 is an apocalyptic number.

It is an amenable number.

16155545 is a deficient number, since it is larger than the sum of its proper divisors (8271463).

16155545 is a wasteful number, since it uses less digits than its factorization.

16155545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150 (or 143 counting only the distinct ones).

The product of its digits is 15000, while the sum is 32.

The square root of 16155545 is about 4019.3960989183. The cubic root of 16155545 is about 252.7981381803.

The spelling of 16155545 in words is "sixteen million, one hundred fifty-five thousand, five hundred forty-five".