16212534340 has 12 divisors (see below), whose sum is σ = 34046322156. Its totient is φ = 6485013728.

The previous prime is 16212534329. The next prime is 16212534341. The reversal of 16212534340 is 4343521261.

It can be written as a sum of positive squares in 2 ways, for example, as 6278026756 + 9934507584 = 79234^2 + 99672^2 .

It is not an unprimeable number, because it can be changed into a prime (16212534341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 405313339 + ... + 405313378.

It is an arithmetic number, because the mean of its divisors is an integer number (2837193513).

Almost surely, 2^16212534340 is an apocalyptic number.

16212534340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16212534340 is an abundant number, since it is smaller than the sum of its proper divisors (17833787816).

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

16212534340 is a wasteful number, since it uses less digits than its factorization.

16212534340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810626726 (or 810626724 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The spelling of 16212534340 in words is "sixteen billion, two hundred twelve million, five hundred thirty-four thousand, three hundred forty".