2001420265020 has 192 divisors, whose sum is σ = 6126696576000. Its totient is φ = 484141271040.

The previous prime is 2001420264983. The next prime is 2001420265049. The reversal of 2001420265020 is 205620241002.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1026895006 + ... + 1026896954.

It is an arithmetic number, because the mean of its divisors is an integer number (31909878000).

Almost surely, 2^{2001420265020} is an apocalyptic number.

2001420265020 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 2001420265020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3063348288000).

2001420265020 is an abundant number, since it is smaller than the sum of its proper divisors (4125276310980).

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

2001420265020 is a wasteful number, since it uses less digits than its factorization.

2001420265020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4548 (or 4546 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The spelling of 2001420265020 in words is "two trillion, one billion, four hundred twenty million, two hundred sixty-five thousand, twenty".