201245653336 has 128 divisors (see below), whose sum is σ = 494868286080. Its totient is φ = 74452525056.

The previous prime is 201245653333. The next prime is 201245653337. The reversal of 201245653336 is 633356542102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201245653333) 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, 1891246 + ... + 1994818.

It is an arithmetic number, because the mean of its divisors is an integer number (3866158485).

Almost surely, 2^201245653336 is an apocalyptic number.

201245653336 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201245653336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247434143040).

201245653336 is an abundant number, since it is smaller than the sum of its proper divisors (293622632744).

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

201245653336 is a wasteful number, since it uses less digits than its factorization.

201245653336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103773 (or 103769 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 40.

The spelling of 201245653336 in words is "two hundred one billion, two hundred forty-five million, six hundred fifty-three thousand, three hundred thirty-six".