12091067652 has 12 divisors (see below), whose sum is σ = 28212491216. Its totient is φ = 4030355880.

The previous prime is 12091067647. The next prime is 12091067689. The reversal of 12091067652 is 25676019021.

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 12091067652.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 503794474 + ... + 503794497.

Almost surely, 2^12091067652 is an apocalyptic number.

12091067652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12091067652 is an abundant number, since it is smaller than the sum of its proper divisors (16121423564).

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

12091067652 is a wasteful number, since it uses less digits than its factorization.

12091067652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007588978 (or 1007588976 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 39.

The spelling of 12091067652 in words is "twelve billion, ninety-one million, sixty-seven thousand, six hundred fifty-two".