20340171744 has 48 divisors (see below), whose sum is σ = 53410855680. Its totient is φ = 6777783680.

The previous prime is 20340171737. The next prime is 20340171767. The reversal of 20340171744 is 44717104302.

It is a tau number, because it is divible by the number of its divisors (48).

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, 265459 + ... + 333389.

It is an arithmetic number, because the mean of its divisors is an integer number (1112726160).

Almost surely, 2^20340171744 is an apocalyptic number.

20340171744 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20340171744 is an abundant number, since it is smaller than the sum of its proper divisors (33070683936).

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

20340171744 is a wasteful number, since it uses less digits than its factorization.

20340171744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71063 (or 71055 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 33.

The spelling of 20340171744 in words is "twenty billion, three hundred forty million, one hundred seventy-one thousand, seven hundred forty-four".