20456401451312 has 20 divisors (see below), whose sum is σ = 40382094376080. Its totient is φ = 10035215805888.

The previous prime is 20456401451303. The next prime is 20456401451323. The reversal of 20456401451312 is 21315410465402.

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 3 ways as a sum of consecutive naturals, for example, 12061556612 + ... + 12061558307.

It is an arithmetic number, because the mean of its divisors is an integer number (2019104718804).

Almost surely, 2^{20456401451312} is an apocalyptic number.

It is an amenable number.

20456401451312 is a deficient number, since it is larger than the sum of its proper divisors (19925692924768).

20456401451312 is a wasteful number, since it uses less digits than its factorization.

20456401451312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24123114980 (or 24123114974 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 38.

The spelling of 20456401451312 in words is "twenty trillion, four hundred fifty-six billion, four hundred one million, four hundred fifty-one thousand, three hundred twelve".