20344113211760 has 160 divisors (see below), whose sum is σ = 51190605049920. Its totient is φ = 7474515148800.

The previous prime is 20344113211727. The next prime is 20344113211801. The reversal of 20344113211760 is 6711231144302.

It is a self number, because there is not a number n which added to its sum of digits gives 20344113211760.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1962007856 + ... + 1962018224.

It is an arithmetic number, because the mean of its divisors is an integer number (319941281562).

Almost surely, 2^{20344113211760} is an apocalyptic number.

20344113211760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20344113211760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25595302524960).

20344113211760 is an abundant number, since it is smaller than the sum of its proper divisors (30846491838160).

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

20344113211760 is a wasteful number, since it uses less digits than its factorization.

20344113211760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19547 (or 19541 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The spelling of 20344113211760 in words is "twenty trillion, three hundred forty-four billion, one hundred thirteen million, two hundred eleven thousand, seven hundred sixty".