1255550199999 has 8 divisors (see below), whose sum is σ = 1690641853872. Its totient is φ = 828746006400.

The previous prime is 1255550199991. The next prime is 1255550200019. The reversal of 1255550199999 is 9999910555521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1255550199999 - 2³ = 1255550199991 is a prime.

It is a super-3 number, since 3×1255550199999³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255550199991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2071864714 + ... + 2071865319.

It is an arithmetic number, because the mean of its divisors is an integer number (211330231734).

Almost surely, 2^{1255550199999} is an apocalyptic number.

1255550199999 is a deficient number, since it is larger than the sum of its proper divisors (435091653873).

1255550199999 is a wasteful number, since it uses less digits than its factorization.

1255550199999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4143730137.

The product of its (nonzero) digits is 73811250, while the sum is 69.

The spelling of 1255550199999 in words is "one trillion, two hundred fifty-five billion, five hundred fifty million, one hundred ninety-nine thousand, nine hundred ninety-nine".