20126256434184 has 32 divisors (see below), whose sum is σ = 50364443903040. Its totient is φ = 6702245102400.

The previous prime is 20126256434183. The next prime is 20126256434231. The reversal of 20126256434184 is 48143465262102.

It is not an unprimeable number, because it can be changed into a prime (20126256434183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 406664887 + ... + 406714374.

It is an arithmetic number, because the mean of its divisors is an integer number (1573888871970).

Almost surely, 2^{20126256434184} is an apocalyptic number.

20126256434184 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20126256434184 is an abundant number, since it is smaller than the sum of its proper divisors (30238187468856).

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

20126256434184 is a wasteful number, since it uses less digits than its factorization.

20126256434184 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813380301 (or 813380297 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 48.

The spelling of 20126256434184 in words is "twenty trillion, one hundred twenty-six billion, two hundred fifty-six million, four hundred thirty-four thousand, one hundred eighty-four".