20015455346422 has 32 divisors (see below), whose sum is σ = 31259237141664. Its totient is φ = 9603178041600.

The previous prime is 20015455346371. The next prime is 20015455346429. The reversal of 20015455346422 is 22464355451002.

It is a super-2 number, since 2×20015455346422² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20015455346429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80316772 + ... + 80565592.

It is an arithmetic number, because the mean of its divisors is an integer number (976851160677).

Almost surely, 2^{20015455346422} is an apocalyptic number.

20015455346422 is a deficient number, since it is larger than the sum of its proper divisors (11243781795242).

20015455346422 is a wasteful number, since it uses less digits than its factorization.

20015455346422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263824.

The product of its (nonzero) digits is 1152000, while the sum is 43.

The spelling of 20015455346422 in words is "twenty trillion, fifteen billion, four hundred fifty-five million, three hundred forty-six thousand, four hundred twenty-two".