16040343612 has 24 divisors (see below), whose sum is σ = 39054750336. Its totient is φ = 5114312368.

The previous prime is 16040343607. The next prime is 16040343619. The reversal of 16040343612 is 21634304061.

It is a self number, because there is not a number n which added to its sum of digits gives 16040343612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16040343619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29058318 + ... + 29058869.

It is an arithmetic number, because the mean of its divisors is an integer number (1627281264).

Almost surely, 2^16040343612 is an apocalyptic number.

16040343612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16040343612 is an abundant number, since it is smaller than the sum of its proper divisors (23014406724).

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

16040343612 is a wasteful number, since it uses less digits than its factorization.

16040343612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58117217 (or 58117215 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

Adding to 16040343612 its reverse (21634304061), we get a palindrome (37674647673).

The spelling of 16040343612 in words is "sixteen billion, forty million, three hundred forty-three thousand, six hundred twelve".