16156332749 has 8 divisors (see below), whose sum is σ = 16229505600. Its totient is φ = 16083249376.

The previous prime is 16156332691. The next prime is 16156332847. The reversal of 16156332749 is 94723365161.

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 16156332749 - 2¹⁶ = 16156267213 is a prime.

It is a super-2 number, since 2×16156332749² (a number of 21 digits) 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 (16156332349) 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 7 ways as a sum of consecutive naturals, for example, 353777 + ... + 396825.

It is an arithmetic number, because the mean of its divisors is an integer number (2028688200).

Almost surely, 2^16156332749 is an apocalyptic number.

It is an amenable number.

16156332749 is a deficient number, since it is larger than the sum of its proper divisors (73172851).

16156332749 is a wasteful number, since it uses less digits than its factorization.

16156332749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44739.

The product of its digits is 816480, while the sum is 47.

The spelling of 16156332749 in words is "sixteen billion, one hundred fifty-six million, three hundred thirty-two thousand, seven hundred forty-nine".