11550546133640 has 32 divisors (see below), whose sum is σ = 26178427563480. Its totient is φ = 4586494228992.

The previous prime is 11550546133597. The next prime is 11550546133663. The reversal of 11550546133640 is 4633164505511.

It can be written as a sum of positive squares in 4 ways, for example, as 6129555930436 + 5420990203204 = 2475794^2 + 2328302^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11550546133591 and 11550546133600.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1053876467 + ... + 1053887426.

Almost surely, 2^{11550546133640} is an apocalyptic number.

11550546133640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11550546133640 is an abundant number, since it is smaller than the sum of its proper divisors (14627881429840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11550546133640 is a wasteful number, since it uses less digits than its factorization.

11550546133640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2107764041 (or 2107764037 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 44.

The spelling of 11550546133640 in words is "eleven trillion, five hundred fifty billion, five hundred forty-six million, one hundred thirty-three thousand, six hundred forty".