20380576554426 has 128 divisors (see below), whose sum is σ = 47752692203520. Its totient is φ = 5729914803200.

The previous prime is 20380576554413. The next prime is 20380576554449. The reversal of 20380576554426 is 62445567508302.

It is a super-2 number, since 2×20380576554426² (a number of 27 digits) contains 22 as substring.

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, 684839335 + ... + 684869093.

It is an arithmetic number, because the mean of its divisors is an integer number (373067907840).

Almost surely, 2^{20380576554426} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20380576554426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23876346101760).

20380576554426 is an abundant number, since it is smaller than the sum of its proper divisors (27372115649094).

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

20380576554426 is a wasteful number, since it uses less digits than its factorization.

20380576554426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38460.

The product of its (nonzero) digits is 48384000, while the sum is 57.

The spelling of 20380576554426 in words is "twenty trillion, three hundred eighty billion, five hundred seventy-six million, five hundred fifty-four thousand, four hundred twenty-six".