201050990801920 has 352 divisors, whose sum is σ = 581070828994560. Its totient is φ = 65288823275520.

The previous prime is 201050990801893. The next prime is 201050990801959. The reversal of 201050990801920 is 29108099050102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50293801 + ... + 54143959.

Almost surely, 2^{201050990801920} is an apocalyptic number.

201050990801920 is a gapful number since it is divisible by the number (20) 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 201050990801920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290535414497280).

201050990801920 is an abundant number, since it is smaller than the sum of its proper divisors (380019838192640).

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

201050990801920 is a wasteful number, since it uses less digits than its factorization.

201050990801920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3850269 (or 3850251 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 46.

The spelling of 201050990801920 in words is "two hundred one trillion, fifty billion, nine hundred ninety million, eight hundred one thousand, nine hundred twenty".