218850765016740 has 24 divisors (see below), whose sum is σ = 612782142047040. Its totient is φ = 58360204004448.

The previous prime is 218850765016729. The next prime is 218850765016747. The reversal of 218850765016740 is 47610567058812.

It is a super-2 number, since 2×218850765016740² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60), and also a Moran number because the ratio is a prime number: 3647512750279 = 218850765016740 / (2 + 1 + 8 + 8 + 5 + 0 + 7 + 6 + 5 + 0 + 1 + 6 + 7 + 4 + 0).

It is not an unprimeable number, because it can be changed into a prime (218850765016747) 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, 1823756375080 + ... + 1823756375199.

It is an arithmetic number, because the mean of its divisors is an integer number (25532589251960).

Almost surely, 2^{218850765016740} is an apocalyptic number.

218850765016740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

218850765016740 is an abundant number, since it is smaller than the sum of its proper divisors (393931377030300).

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

218850765016740 is a wasteful number, since it uses less digits than its factorization.

218850765016740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3647512750291 (or 3647512750289 counting only the distinct ones).

The product of its (nonzero) digits is 22579200, while the sum is 60.

The spelling of 218850765016740 in words is "two hundred eighteen trillion, eight hundred fifty billion, seven hundred sixty-five million, sixteen thousand, seven hundred forty".