218244071532 has 48 divisors (see below), whose sum is σ = 521328310272. Its totient is φ = 71022194880.

The previous prime is 218244071477. The next prime is 218244071533. The reversal of 218244071532 is 235170442812.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (218244071533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 989098 + ... + 1189454.

It is an arithmetic number, because the mean of its divisors is an integer number (10861006464).

Almost surely, 2^218244071532 is an apocalyptic number.

It is an amenable number.

218244071532 is an abundant number, since it is smaller than the sum of its proper divisors (303084238740).

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

218244071532 is a wasteful number, since it uses less digits than its factorization.

218244071532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202518 (or 202516 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 39.

The spelling of 218244071532 in words is "two hundred eighteen billion, two hundred forty-four million, seventy-one thousand, five hundred thirty-two".