16015507212 has 24 divisors (see below), whose sum is σ = 37663768576. Its totient is φ = 5296466448.

The previous prime is 16015507163. The next prime is 16015507213. The reversal of 16015507212 is 21270551061.

It is a self number, because there is not a number n which added to its sum of digits gives 16015507212.

It is not an unprimeable number, because it can be changed into a prime (16015507213) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 5252908 + ... + 5255955.

Almost surely, 2^16015507212 is an apocalyptic number.

16015507212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16015507212 is an abundant number, since it is smaller than the sum of its proper divisors (21648261364).

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

16015507212 is a wasteful number, since it uses less digits than its factorization.

16015507212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10508997 (or 10508995 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 30.

The spelling of 16015507212 in words is "sixteen billion, fifteen million, five hundred seven thousand, two hundred twelve".