16649087437 has 8 divisors (see below), whose sum is σ = 16723532672. Its totient is φ = 16574738400.

The previous prime is 16649087417. The next prime is 16649087449. The reversal of 16649087437 is 73478094661.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16649087437 is a prime.

It is a super-2 number, since 2×16649087437² (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 (16649087417) 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, 334738 + ... + 381244.

It is an arithmetic number, because the mean of its divisors is an integer number (2090441584).

Almost surely, 2^16649087437 is an apocalyptic number.

It is an amenable number.

16649087437 is a deficient number, since it is larger than the sum of its proper divisors (74445235).

16649087437 is a wasteful number, since it uses less digits than its factorization.

16649087437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48099.

The product of its (nonzero) digits is 6096384, while the sum is 55.

The spelling of 16649087437 in words is "sixteen billion, six hundred forty-nine million, eighty-seven thousand, four hundred thirty-seven".