201534254334 has 240 divisors, whose sum is σ = 545944449600. Its totient is φ = 55338401664.

The previous prime is 201534254303. The next prime is 201534254359. The reversal of 201534254334 is 433452435102.

201534254334 is a `hidden beast` number, since 20 + 1 + 53 + 4 + 254 + 334 = 666.

It is a super-2 number, since 2×201534254334² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 52714347 + ... + 52718169.

It is an arithmetic number, because the mean of its divisors is an integer number (2274768540).

Almost surely, 2^201534254334 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201534254334, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (272972224800).

201534254334 is an abundant number, since it is smaller than the sum of its proper divisors (344410195266).

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

201534254334 is a wasteful number, since it uses less digits than its factorization.

201534254334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4109 (or 4093 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 36.

Adding to 201534254334 its reverse (433452435102), we get a palindrome (634986689436).

The spelling of 201534254334 in words is "two hundred one billion, five hundred thirty-four million, two hundred fifty-four thousand, three hundred thirty-four".