16433542734 has 64 divisors (see below), whose sum is σ = 39358725120. Its totient is φ = 4472455680.

The previous prime is 16433542693. The next prime is 16433542747. The reversal of 16433542734 is 43724533461.

It is a happy number.

It is a super-2 number, since 2×16433542734² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 197512 + ... + 268100.

It is an arithmetic number, because the mean of its divisors is an integer number (614980080).

Almost surely, 2^16433542734 is an apocalyptic number.

16433542734 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16433542734, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19679362560).

16433542734 is an abundant number, since it is smaller than the sum of its proper divisors (22925182386).

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

16433542734 is a wasteful number, since it uses less digits than its factorization.

16433542734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70865.

The product of its digits is 725760, while the sum is 42.

The spelling of 16433542734 in words is "sixteen billion, four hundred thirty-three million, five hundred forty-two thousand, seven hundred thirty-four".