12149563652 has 12 divisors (see below), whose sum is σ = 21281232336. Its totient is φ = 6069211560.

The previous prime is 12149563649. The next prime is 12149563663. The reversal of 12149563652 is 25636594121.

It is a super-2 number, since 2×12149563652² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1387658 + ... + 1396385.

It is an arithmetic number, because the mean of its divisors is an integer number (1773436028).

Almost surely, 2^12149563652 is an apocalyptic number.

It is an amenable number.

12149563652 is a deficient number, since it is larger than the sum of its proper divisors (9131668684).

12149563652 is a wasteful number, since it uses less digits than its factorization.

12149563652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2785138 (or 2785136 counting only the distinct ones).

The product of its digits is 388800, while the sum is 44.

The spelling of 12149563652 in words is "twelve billion, one hundred forty-nine million, five hundred sixty-three thousand, six hundred fifty-two".