12711165550 has 24 divisors (see below), whose sum is σ = 23646424032. Its totient is φ = 5083680000.

The previous prime is 12711165539. The next prime is 12711165581. The reversal of 12711165550 is 5556111721.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 392475 + ... + 423625.

It is an arithmetic number, because the mean of its divisors is an integer number (985267668).

Almost surely, 2^12711165550 is an apocalyptic number.

12711165550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12711165550 is a deficient number, since it is larger than the sum of its proper divisors (10935258482).

12711165550 is a wasteful number, since it uses less digits than its factorization.

12711165550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39324 (or 39319 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 34.

The spelling of 12711165550 in words is "twelve billion, seven hundred eleven million, one hundred sixty-five thousand, five hundred fifty".