264445337040 has 40 divisors (see below), whose sum is σ = 819780545568. Its totient is φ = 70518756480.

The previous prime is 264445336997. The next prime is 264445337041. The reversal of 264445337040 is 40733544462.

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

It is a junction number, because it is equal to n+sod(n) for n = 264445336983 and 264445337001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264445337041) 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, 550927546 + ... + 550928025.

Almost surely, 2^264445337040 is an apocalyptic number.

264445337040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

264445337040 is an abundant number, since it is smaller than the sum of its proper divisors (555335208528).

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

264445337040 is a wasteful number, since it uses less digits than its factorization.

264445337040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101855587 (or 1101855581 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 42.

The spelling of 264445337040 in words is "two hundred sixty-four billion, four hundred forty-five million, three hundred thirty-seven thousand, forty".