10001660550 has 96 divisors (see below), whose sum is σ = 29113827072. Its totient is φ = 2224298880.

The previous prime is 10001660549. The next prime is 10001660567. The reversal of 10001660550 is 5506610001.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 10001660550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 89872 + ... + 167571.

It is an arithmetic number, because the mean of its divisors is an integer number (303269032).

Almost surely, 2^10001660550 is an apocalyptic number.

10001660550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10001660550 is an abundant number, since it is smaller than the sum of its proper divisors (19112166522).

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

10001660550 is a wasteful number, since it uses less digits than its factorization.

10001660550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257502 (or 257497 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

The spelling of 10001660550 in words is "ten billion, one million, six hundred sixty thousand, five hundred fifty".