11937105551 has 16 divisors (see below), whose sum is σ = 14369894400. Its totient is φ = 9901737720.

The previous prime is 11937105527. The next prime is 11937105559. The reversal of 11937105551 is 15550173911.

11937105551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11937105551 - 2⁶ = 11937105487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11937105559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 550691 + ... + 571956.

It is an arithmetic number, because the mean of its divisors is an integer number (898118400).

Almost surely, 2^11937105551 is an apocalyptic number.

11937105551 is a deficient number, since it is larger than the sum of its proper divisors (2432788849).

11937105551 is an equidigital number, since it uses as much as digits as its factorization.

11937105551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122699 (or 1122685 counting only the distinct ones).

The product of its (nonzero) digits is 23625, while the sum is 38.

The spelling of 11937105551 in words is "eleven billion, nine hundred thirty-seven million, one hundred five thousand, five hundred fifty-one".