20366105136456 has 128 divisors (see below), whose sum is σ = 53041443840000. Its totient is φ = 6508585773312.

The previous prime is 20366105136371. The next prime is 20366105136467. The reversal of 20366105136456 is 65463150166302.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 112305745 + ... + 112486943.

It is an arithmetic number, because the mean of its divisors is an integer number (414386280000).

Almost surely, 2^{20366105136456} 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 20366105136456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26520721920000).

20366105136456 is an abundant number, since it is smaller than the sum of its proper divisors (32675338703544).

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

20366105136456 is a wasteful number, since it uses less digits than its factorization.

20366105136456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182371 (or 182367 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 48.

The spelling of 20366105136456 in words is "twenty trillion, three hundred sixty-six billion, one hundred five million, one hundred thirty-six thousand, four hundred fifty-six".