12155246266251 has 16 divisors (see below), whose sum is σ = 17680566988800. Its totient is φ = 7366728925920.

The previous prime is 12155246266171. The next prime is 12155246266307. The reversal of 12155246266251 is 15266264255121.

It is not a de Polignac number, because 12155246266251 - 2⁹ = 12155246265739 is a prime.

It is a super-3 number, since 3×12155246266251³ (a number of 40 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12155246266251.

It is not an unprimeable number, because it can be changed into a prime (12155246268251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 719541 + ... + 4982793.

It is an arithmetic number, because the mean of its divisors is an integer number (1105035436800).

Almost surely, 2^{12155246266251} is an apocalyptic number.

12155246266251 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12155246266251 is a deficient number, since it is larger than the sum of its proper divisors (5525320722549).

12155246266251 is a wasteful number, since it uses less digits than its factorization.

12155246266251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4349666.

The product of its digits is 1728000, while the sum is 48.

The spelling of 12155246266251 in words is "twelve trillion, one hundred fifty-five billion, two hundred forty-six million, two hundred sixty-six thousand, two hundred fifty-one".