20534818370 has 64 divisors (see below), whose sum is σ = 42197117184. Its totient is φ = 7122001920.

The previous prime is 20534818331. The next prime is 20534818373. The reversal of 20534818370 is 7381843502.

It is not an unprimeable number, because it can be changed into a prime (20534818373) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 881594 + ... + 904586.

It is an arithmetic number, because the mean of its divisors is an integer number (659329956).

Almost surely, 2^20534818370 is an apocalyptic number.

20534818370 is an abundant number, since it is smaller than the sum of its proper divisors (21662298814).

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

20534818370 is a wasteful number, since it uses less digits than its factorization.

20534818370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23387.

The product of its (nonzero) digits is 161280, while the sum is 41.

The spelling of 20534818370 in words is "twenty billion, five hundred thirty-four million, eight hundred eighteen thousand, three hundred seventy".