15605220050 has 24 divisors (see below), whose sum is σ = 33172239936. Its totient is φ = 5350361040.

The previous prime is 15605220041. The next prime is 15605220053. The reversal of 15605220050 is 5002250651.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (15605220053) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22292822 + ... + 22293521.

It is an arithmetic number, because the mean of its divisors is an integer number (1382176664).

Almost surely, 2^15605220050 is an apocalyptic number.

15605220050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15605220050 is an abundant number, since it is smaller than the sum of its proper divisors (17567019886).

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

15605220050 is a wasteful number, since it uses less digits than its factorization.

15605220050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44586362 (or 44586357 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The spelling of 15605220050 in words is "fifteen billion, six hundred five million, two hundred twenty thousand, fifty".