532445666440 has 64 divisors (see below), whose sum is σ = 1268727183360. Its totient is φ = 200410045440.

The previous prime is 532445666419. The next prime is 532445666449. The reversal of 532445666440 is 44666544235.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (532445666449) 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, 3440569 + ... + 3591991.

It is an arithmetic number, because the mean of its divisors is an integer number (19823862240).

Almost surely, 2^532445666440 is an apocalyptic number.

It is an amenable number.

532445666440 is an abundant number, since it is smaller than the sum of its proper divisors (736281516920).

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

532445666440 is a wasteful number, since it uses less digits than its factorization.

532445666440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156622 (or 156618 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 49.

The spelling of 532445666440 in words is "five hundred thirty-two billion, four hundred forty-five million, six hundred sixty-six thousand, four hundred forty".