9115645550 has 24 divisors (see below), whose sum is σ = 18496474632. Its totient is φ = 3314780000.

The previous prime is 9115645549. The next prime is 9115645607. The reversal of 9115645550 is 555465119.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 9115645498 and 9115645507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8286401 + ... + 8287500.

It is an arithmetic number, because the mean of its divisors is an integer number (770686443).

Almost surely, 2^9115645550 is an apocalyptic number.

9115645550 is an abundant number, since it is smaller than the sum of its proper divisors (9380829082).

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

9115645550 is a wasteful number, since it uses less digits than its factorization.

9115645550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16573924 (or 16573919 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 41.

The square root of 9115645550 is about 95475.8898884949. The cubic root of 9115645550 is about 2088.9552824527.

The spelling of 9115645550 in words is "nine billion, one hundred fifteen million, six hundred forty-five thousand, five hundred fifty".