11455512240 has 40 divisors (see below), whose sum is σ = 35512088688. Its totient is φ = 3054803200.

The previous prime is 11455512179. The next prime is 11455512251. The reversal of 11455512240 is 4221555411.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 11455512198 and 11455512207.

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, 23865411 + ... + 23865890.

Almost surely, 2^11455512240 is an apocalyptic number.

11455512240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11455512240 is an abundant number, since it is smaller than the sum of its proper divisors (24056576448).

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

11455512240 is a wasteful number, since it uses less digits than its factorization.

11455512240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47731317 (or 47731311 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 30.

The spelling of 11455512240 in words is "eleven billion, four hundred fifty-five million, five hundred twelve thousand, two hundred forty".