16434272540 has 48 divisors (see below), whose sum is σ = 39506803392. Its totient is φ = 5625386496.

The previous prime is 16434272539. The next prime is 16434272549. The reversal of 16434272540 is 4527243461.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 16434272494 and 16434272503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16434272549) 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, 9929 + ... + 181568.

It is an arithmetic number, because the mean of its divisors is an integer number (823058404).

Almost surely, 2^16434272540 is an apocalyptic number.

16434272540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16434272540 is an abundant number, since it is smaller than the sum of its proper divisors (23072530852).

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

16434272540 is a wasteful number, since it uses less digits than its factorization.

16434272540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192126 (or 192124 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 38.

The spelling of 16434272540 in words is "sixteen billion, four hundred thirty-four million, two hundred seventy-two thousand, five hundred forty".