20353886850550 has 24 divisors (see below), whose sum is σ = 41299886774232. Its totient is φ = 7401413400000.

The previous prime is 20353886850533. The next prime is 20353886850551. The reversal of 20353886850550 is 5505868835302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20353886850551) 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, 18503532951 + ... + 18503534050.

It is an arithmetic number, because the mean of its divisors is an integer number (1720828615593).

Almost surely, 2^{20353886850550} is an apocalyptic number.

20353886850550 is an abundant number, since it is smaller than the sum of its proper divisors (20945999923682).

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

20353886850550 is a wasteful number, since it uses less digits than its factorization.

20353886850550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37007067024 (or 37007067019 counting only the distinct ones).

The product of its (nonzero) digits is 34560000, while the sum is 58.

The spelling of 20353886850550 in words is "twenty trillion, three hundred fifty-three billion, eight hundred eighty-six million, eight hundred fifty thousand, five hundred fifty".