11555313808 has 10 divisors (see below), whose sum is σ = 22388420534. Its totient is φ = 5777656896.

The previous prime is 11555313793. The next prime is 11555313841. The reversal of 11555313808 is 80831355511.

It can be written as a sum of positive squares in only one way, i.e., 9925738384 + 1629575424 = 99628^2 + 40368^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361103541 + ... + 361103572.

Almost surely, 2^11555313808 is an apocalyptic number.

It is an amenable number.

11555313808 is a deficient number, since it is larger than the sum of its proper divisors (10833106726).

11555313808 is an equidigital number, since it uses as much as digits as its factorization.

11555313808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722207121 (or 722207115 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 40.

The spelling of 11555313808 in words is "eleven billion, five hundred fifty-five million, three hundred thirteen thousand, eight hundred eight".