20201487334 has 32 divisors (see below), whose sum is σ = 34815214656. Its totient is φ = 8611868160.

The previous prime is 20201487331. The next prime is 20201487343. The reversal of 20201487334 is 43378410202.

It is a self number, because there is not a number n which added to its sum of digits gives 20201487334.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20201487331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2407354 + ... + 2415730.

It is an arithmetic number, because the mean of its divisors is an integer number (1087975458).

Almost surely, 2^20201487334 is an apocalyptic number.

20201487334 is a deficient number, since it is larger than the sum of its proper divisors (14613727322).

20201487334 is a wasteful number, since it uses less digits than its factorization.

20201487334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9280.

The product of its (nonzero) digits is 32256, while the sum is 34.

Adding to 20201487334 its reverse (43378410202), we get a palindrome (63579897536).

The spelling of 20201487334 in words is "twenty billion, two hundred one million, four hundred eighty-seven thousand, three hundred thirty-four".