12155014552 has 64 divisors (see below), whose sum is σ = 25602048000. Its totient is φ = 5376139776.

The previous prime is 12155014523. The next prime is 12155014583. The reversal of 12155014552 is 25541055121.

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 15 ways as a sum of consecutive naturals, for example, 309649 + ... + 346687.

It is an arithmetic number, because the mean of its divisors is an integer number (400032000).

Almost surely, 2^12155014552 is an apocalyptic number.

It is an amenable number.

12155014552 is an abundant number, since it is smaller than the sum of its proper divisors (13447033448).

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

12155014552 is a wasteful number, since it uses less digits than its factorization.

12155014552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37208 (or 37204 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 31.

Adding to 12155014552 its reverse (25541055121), we get a palindrome (37696069673).

The spelling of 12155014552 in words is "twelve billion, one hundred fifty-five million, fourteen thousand, five hundred fifty-two".