20401884002004 has 24 divisors (see below), whose sum is σ = 47604981940320. Its totient is φ = 6800544295584.

The previous prime is 20401884001979. The next prime is 20401884002029. The reversal of 20401884002004 is 40020048810402.

It is an interprime number because it is at equal distance from previous prime (20401884001979) and next prime (20401884002029).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9443599 + ... + 11401110.

It is an arithmetic number, because the mean of its divisors is an integer number (1983540914180).

Almost surely, 2^{20401884002004} is an apocalyptic number.

It is an amenable number.

20401884002004 is an abundant number, since it is smaller than the sum of its proper divisors (27203097938316).

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

20401884002004 is a wasteful number, since it uses less digits than its factorization.

20401884002004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20926279 (or 20926277 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 33.

The spelling of 20401884002004 in words is "twenty trillion, four hundred one billion, eight hundred eighty-four million, two thousand, four".