2118344640720 has 240 divisors, whose sum is σ = 8333466141888. Its totient is φ = 440175482880.

The previous prime is 2118344640691. The next prime is 2118344640749. The reversal of 2118344640720 is 270464438112.

It is an interprime number because it is at equal distance from previous prime (2118344640691) and next prime (2118344640749).

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8058429 + ... + 8317148.

Almost surely, 2^{2118344640720} is an apocalyptic number.

2118344640720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2118344640720 is an abundant number, since it is smaller than the sum of its proper divisors (6215121501168).

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

2118344640720 is a wasteful number, since it uses less digits than its factorization.

2118344640720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16375618 (or 16375605 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 42.

The spelling of 2118344640720 in words is "two trillion, one hundred eighteen billion, three hundred forty-four million, six hundred forty thousand, seven hundred twenty".