20201354136 has 48 divisors (see below), whose sum is σ = 54957389760. Its totient is φ = 6703583040.

The previous prime is 20201354113. The next prime is 20201354149. The reversal of 20201354136 is 63145310202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 613035 + ... + 645146.

It is an arithmetic number, because the mean of its divisors is an integer number (1144945620).

Almost surely, 2^20201354136 is an apocalyptic number.

It is an amenable number.

20201354136 is an abundant number, since it is smaller than the sum of its proper divisors (34756035624).

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

20201354136 is a wasteful number, since it uses less digits than its factorization.

20201354136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1258416 (or 1258409 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 20201354136 its reverse (63145310202), we get a palindrome (83346664338).

The spelling of 20201354136 in words is "twenty billion, two hundred one million, three hundred fifty-four thousand, one hundred thirty-six".