2231332167440 has 40 divisors (see below), whose sum is σ = 5187915952128. Its totient is φ = 892521054080.

The previous prime is 2231332167419. The next prime is 2231332167487. The reversal of 2231332167440 is 447612331322.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-3 number, since 3×2231332167440³ (a number of 38 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2231332167394 and 2231332167403.

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, 8347055 + ... + 8610225.

Almost surely, 2^{2231332167440} is an apocalyptic number.

2231332167440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2231332167440 is an abundant number, since it is smaller than the sum of its proper divisors (2956583784688).

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

2231332167440 is a wasteful number, since it uses less digits than its factorization.

2231332167440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369167 (or 369161 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 38.

Adding to 2231332167440 its reverse (447612331322), we get a palindrome (2678944498762).

The spelling of 2231332167440 in words is "two trillion, two hundred thirty-one billion, three hundred thirty-two million, one hundred sixty-seven thousand, four hundred forty".