20423641540100 has 72 divisors (see below), whose sum is σ = 45035811773568. Its totient is φ = 8037853689600.

The previous prime is 20423641540091. The next prime is 20423641540111. The reversal of 20423641540100 is 104514632402.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 504344 + ... + 6411056.

It is an arithmetic number, because the mean of its divisors is an integer number (625497385744).

Almost surely, 2^{20423641540100} is an apocalyptic number.

20423641540100 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 20423641540100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22517905886784).

20423641540100 is an abundant number, since it is smaller than the sum of its proper divisors (24612170233468).

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

20423641540100 is a wasteful number, since it uses less digits than its factorization.

20423641540100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5907285 (or 5907278 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The spelling of 20423641540100 in words is "twenty trillion, four hundred twenty-three billion, six hundred forty-one million, five hundred forty thousand, one hundred".