16429993452 has 48 divisors (see below), whose sum is σ = 43074914400. Its totient is φ = 5415125760.

The previous prime is 16429993421. The next prime is 16429993457. The reversal of 16429993452 is 25439992461.

16429993452 is a `hidden beast` number, since 1 + 6 + 4 + 299 + 9 + 345 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (16429993457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 845049 + ... + 864272.

It is an arithmetic number, because the mean of its divisors is an integer number (897394050).

Almost surely, 2^16429993452 is an apocalyptic number.

16429993452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16429993452 is an abundant number, since it is smaller than the sum of its proper divisors (26644920948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16429993452 is a wasteful number, since it uses less digits than its factorization.

16429993452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1709423 (or 1709415 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 54.

Subtracting 16429993452 from its reverse (25439992461), we obtain a palindrome (9009999009).

The spelling of 16429993452 in words is "sixteen billion, four hundred twenty-nine million, nine hundred ninety-three thousand, four hundred fifty-two".