201255253154040 has 64 divisors (see below), whose sum is σ = 604454204201760. Its totient is φ = 53606872419840.

The previous prime is 201255253153891. The next prime is 201255253154047. The reversal of 201255253154040 is 40451352552102.

It is a self number, because there is not a number n which added to its sum of digits gives 201255253154040.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201255253154047) 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, 956067571 + ... + 956278050.

Almost surely, 2^{201255253154040} is an apocalyptic number.

201255253154040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201255253154040 is an abundant number, since it is smaller than the sum of its proper divisors (403198951047720).

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

201255253154040 is a wasteful number, since it uses less digits than its factorization.

201255253154040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1912346512 (or 1912346508 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 39.

The spelling of 201255253154040 in words is "two hundred one trillion, two hundred fifty-five billion, two hundred fifty-three million, one hundred fifty-four thousand, forty".