12155000671 has 24 divisors (see below), whose sum is σ = 13738342464. Its totient is φ = 10739520000.

The previous prime is 12155000651. The next prime is 12155000681. The reversal of 12155000671 is 17600055121.

It is a de Polignac number, because none of the positive numbers 2^k-12155000671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12155000651) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1339911 + ... + 1348951.

It is an arithmetic number, because the mean of its divisors is an integer number (572430936).

Almost surely, 2^12155000671 is an apocalyptic number.

12155000671 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12155000671 is a deficient number, since it is larger than the sum of its proper divisors (1583341793).

12155000671 is a wasteful number, since it uses less digits than its factorization.

12155000671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9375 (or 9364 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 28.

Adding to 12155000671 its reverse (17600055121), we get a palindrome (29755055792).

The spelling of 12155000671 in words is "twelve billion, one hundred fifty-five million, six hundred seventy-one", and thus it is an aban number.