20535880094 has 4 divisors (see below), whose sum is σ = 30803820144. Its totient is φ = 10267940046.

The previous prime is 20535880087. The next prime is 20535880097. The reversal of 20535880094 is 49008853502.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20535880097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5133970022 + ... + 5133970025.

It is an arithmetic number, because the mean of its divisors is an integer number (7700955036).

Almost surely, 2^20535880094 is an apocalyptic number.

20535880094 is a deficient number, since it is larger than the sum of its proper divisors (10267940050).

20535880094 is a wasteful number, since it uses less digits than its factorization.

20535880094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10267940049.

The product of its (nonzero) digits is 345600, while the sum is 44.

The spelling of 20535880094 in words is "twenty billion, five hundred thirty-five million, eight hundred eighty thousand, ninety-four".