16204587434 has 12 divisors (see below), whose sum is σ = 28275351714. Its totient is φ = 6944823144.

The previous prime is 16204587431. The next prime is 16204587457. The reversal of 16204587434 is 43478540261.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 9406090225 + 6798497209 = 96985^2 + 82453^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16204587431) 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 5 ways as a sum of consecutive naturals, for example, 82676369 + ... + 82676564.

Almost surely, 2^16204587434 is an apocalyptic number.

16204587434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

16204587434 is a deficient number, since it is larger than the sum of its proper divisors (12070764280).

16204587434 is a wasteful number, since it uses less digits than its factorization.

16204587434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165352949 (or 165352942 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 44.

The spelling of 16204587434 in words is "sixteen billion, two hundred four million, five hundred eighty-seven thousand, four hundred thirty-four".