16163434400 has 36 divisors (see below), whose sum is σ = 39458986182. Its totient is φ = 6465373440.

The previous prime is 16163434367. The next prime is 16163434409. The reversal of 16163434400 is 443436161.

It can be written as a sum of positive squares in 3 ways, for example, as 15070999696 + 1092434704 = 122764^2 + 33052^2 .

It is a super-2 number, since 2×16163434400² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (16163434409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10101347 + ... + 10102946.

Almost surely, 2^16163434400 is an apocalyptic number.

16163434400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16163434400 is an abundant number, since it is smaller than the sum of its proper divisors (23295551782).

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

16163434400 is a wasteful number, since it uses less digits than its factorization.

16163434400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20204313 (or 20204300 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

The spelling of 16163434400 in words is "sixteen billion, one hundred sixty-three million, four hundred thirty-four thousand, four hundred".