16540212412 has 12 divisors (see below), whose sum is σ = 29210926360. Its totient is φ = 8194233456.

The previous prime is 16540212401. The next prime is 16540212419. The reversal of 16540212412 is 21421204561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16540212419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18967698 + ... + 18968569.

Almost surely, 2^16540212412 is an apocalyptic number.

It is an amenable number.

16540212412 is a deficient number, since it is larger than the sum of its proper divisors (12670713948).

16540212412 is a wasteful number, since it uses less digits than its factorization.

16540212412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37936380 (or 37936378 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

Adding to 16540212412 its reverse (21421204561), we get a palindrome (37961416973).

The spelling of 16540212412 in words is "sixteen billion, five hundred forty million, two hundred twelve thousand, four hundred twelve".