16031615412 has 12 divisors (see below), whose sum is σ = 37407102656. Its totient is φ = 5343871800.

The previous prime is 16031615407. The next prime is 16031615429. The reversal of 16031615412 is 21451613061.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 16031615412.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 667983964 + ... + 667983987.

Almost surely, 2^16031615412 is an apocalyptic number.

16031615412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16031615412 is an abundant number, since it is smaller than the sum of its proper divisors (21375487244).

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

16031615412 is a wasteful number, since it uses less digits than its factorization.

16031615412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1335967958 (or 1335967956 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The spelling of 16031615412 in words is "sixteen billion, thirty-one million, six hundred fifteen thousand, four hundred twelve".