12695580050 has 12 divisors (see below), whose sum is σ = 23613778986. Its totient is φ = 5078232000.

The previous prime is 12695580049. The next prime is 12695580083. The reversal of 12695580050 is 5008559621.

It can be written as a sum of positive squares in 3 ways, for example, as 4799302729 + 7896277321 = 69277^2 + 88861^2 .

It is a super-2 number, since 2×12695580050² (a number of 21 digits) contains 22 as substring.

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 5 ways as a sum of consecutive naturals, for example, 126955751 + ... + 126955850.

Almost surely, 2^12695580050 is an apocalyptic number.

12695580050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12695580050 is a deficient number, since it is larger than the sum of its proper divisors (10918198936).

12695580050 is a wasteful number, since it uses less digits than its factorization.

12695580050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253911613 (or 253911608 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 41.

The spelling of 12695580050 in words is "twelve billion, six hundred ninety-five million, five hundred eighty thousand, fifty".