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2001636378204 = 22329371492633967
BaseRepresentation
bin11101001000001010110…
…100110100011001011100
321002100120110222110212020
4131020022310310121130
5230243322403100304
64131312234140140
7264420262330011
oct35101264643134
97070513873766
102001636378204
11701986609a71
12283b1bb81650
131169a45962b8
146cc45d33708
15371019b55d9
hex1d20ad3465c

2001636378204 has 192 divisors, whose sum is σ = 5015678976000. Its totient is φ = 620063603712.

The previous prime is 2001636378199. The next prime is 2001636378221. The reversal of 2001636378204 is 4028736361002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 504569829 + ... + 504573795.

It is an arithmetic number, because the mean of its divisors is an integer number (26123328000).

Almost surely, 22001636378204 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2001636378204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2507839488000).

2001636378204 is an abundant number, since it is smaller than the sum of its proper divisors (3014042597796).

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

2001636378204 is a wasteful number, since it uses less digits than its factorization.

2001636378204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4452 (or 4450 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 42.

The spelling of 2001636378204 in words is "two trillion, one billion, six hundred thirty-six million, three hundred seventy-eight thousand, two hundred four".