1125686554215 has 32 divisors (see below), whose sum is σ = 1867257052416. Its totient is φ = 578666154240.

The previous prime is 1125686554207. The next prime is 1125686554273. The reversal of 1125686554215 is 5124556865211.

It is a happy number.

It is not a de Polignac number, because 1125686554215 - 2³ = 1125686554207 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10975369 + ... + 11077458.

It is an arithmetic number, because the mean of its divisors is an integer number (58351782888).

Almost surely, 2^{1125686554215} is an apocalyptic number.

1125686554215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1125686554215 is a deficient number, since it is larger than the sum of its proper divisors (741570498201).

1125686554215 is a wasteful number, since it uses less digits than its factorization.

1125686554215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22052959.

The product of its digits is 2880000, while the sum is 51.

The spelling of 1125686554215 in words is "one trillion, one hundred twenty-five billion, six hundred eighty-six million, five hundred fifty-four thousand, two hundred fifteen".