20450346013146 has 32 divisors (see below), whose sum is σ = 47509937347968. Its totient is φ = 5747169839040.

The previous prime is 20450346013121. The next prime is 20450346013151. The reversal of 20450346013146 is 64131064305402.

It is an unprimeable number.

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, 3991087605 + ... + 3991092728.

It is an arithmetic number, because the mean of its divisors is an integer number (1484685542124).

Almost surely, 2^{20450346013146} is an apocalyptic number.

20450346013146 is an abundant number, since it is smaller than the sum of its proper divisors (27059591334822).

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

20450346013146 is a wasteful number, since it uses less digits than its factorization.

20450346013146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7982180406.

The product of its (nonzero) digits is 207360, while the sum is 39.

The spelling of 20450346013146 in words is "twenty trillion, four hundred fifty billion, three hundred forty-six million, thirteen thousand, one hundred forty-six".