11550535455 has 8 divisors (see below), whose sum is σ = 18480856752. Its totient is φ = 6160285568.

The previous prime is 11550535441. The next prime is 11550535553. The reversal of 11550535455 is 55453505511.

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

It is a cyclic number.

It is not a de Polignac number, because 11550535455 - 2²¹ = 11548438303 is a prime.

It is a congruent number.

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, 385017834 + ... + 385017863.

It is an arithmetic number, because the mean of its divisors is an integer number (2310107094).

Almost surely, 2^11550535455 is an apocalyptic number.

11550535455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11550535455 is a deficient number, since it is larger than the sum of its proper divisors (6930321297).

11550535455 is an equidigital number, since it uses as much as digits as its factorization.

11550535455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770035705.

The product of its (nonzero) digits is 187500, while the sum is 39.

The spelling of 11550535455 in words is "eleven billion, five hundred fifty million, five hundred thirty-five thousand, four hundred fifty-five".