20350123405424 has 40 divisors (see below), whose sum is σ = 41748792727680. Its totient is φ = 9576273328128.

The previous prime is 20350123405387. The next prime is 20350123405433. The reversal of 20350123405424 is 42450432105302.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9422732 + ... + 11379284.

It is an arithmetic number, because the mean of its divisors is an integer number (1043719818192).

Almost surely, 2^{20350123405424} is an apocalyptic number.

It is an amenable number.

20350123405424 is an abundant number, since it is smaller than the sum of its proper divisors (21398669322256).

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

20350123405424 is a wasteful number, since it uses less digits than its factorization.

20350123405424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1994817 (or 1994811 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 35.

The spelling of 20350123405424 in words is "twenty trillion, three hundred fifty billion, one hundred twenty-three million, four hundred five thousand, four hundred twenty-four".