16740900909 has 40 divisors (see below), whose sum is σ = 26672650488. Its totient is φ = 10427304960.

The previous prime is 16740900899. The next prime is 16740900929. The reversal of 16740900909 is 90900904761.

It can be written as a sum of positive squares in 4 ways, for example, as 2956966884 + 13783934025 = 54378^2 + 117405^2 .

It is not a de Polignac number, because 16740900909 - 2¹¹ = 16740898861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16740900929) 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 39 ways as a sum of consecutive naturals, for example, 144279 + ... + 233019.

Almost surely, 2^16740900909 is an apocalyptic number.

It is an amenable number.

16740900909 is a deficient number, since it is larger than the sum of its proper divisors (9931749579).

16740900909 is a wasteful number, since it uses less digits than its factorization.

16740900909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88907 (or 88898 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The spelling of 16740900909 in words is "sixteen billion, seven hundred forty million, nine hundred thousand, nine hundred nine".