16161533 has 8 divisors (see below), whose sum is σ = 17051520. Its totient is φ = 15275520.

The previous prime is 16161529. The next prime is 16161547. The reversal of 16161533 is 33516161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16161533 - 2² = 16161529 is a prime.

It is a super-2 number, since 2×16161533² = 522390297820178, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16161553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11516 + ... + 12842.

It is an arithmetic number, because the mean of its divisors is an integer number (2131440).

Almost surely, 2^16161533 is an apocalyptic number.

It is an amenable number.

16161533 is a deficient number, since it is larger than the sum of its proper divisors (889987).

16161533 is a wasteful number, since it uses less digits than its factorization.

16161533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1987.

The product of its digits is 1620, while the sum is 26.

The square root of 16161533 is about 4020.1409179281. The cubic root of 16161533 is about 252.8293672571.

Adding to 16161533 its reverse (33516161), we get a palindrome (49677694).

The spelling of 16161533 in words is "sixteen million, one hundred sixty-one thousand, five hundred thirty-three".