264334631365040 has 40 divisors (see below), whose sum is σ = 614604177889440. Its totient is φ = 105729351906816.

The previous prime is 264334631365039. The next prime is 264334631365043. The reversal of 264334631365040 is 40563136433462.

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

It is a self number, because there is not a number n which added to its sum of digits gives 264334631365040.

It is not an unprimeable number, because it can be changed into a prime (264334631365043) 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, 68430980 + ... + 72190499.

It is an arithmetic number, because the mean of its divisors is an integer number (15365104447236).

Almost surely, 2^{264334631365040} is an apocalyptic number.

264334631365040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

264334631365040 is an abundant number, since it is smaller than the sum of its proper divisors (350269546524400).

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

264334631365040 is a wasteful number, since it uses less digits than its factorization.

264334631365040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140644989 (or 140644983 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 50.

The spelling of 264334631365040 in words is "two hundred sixty-four trillion, three hundred thirty-four billion, six hundred thirty-one million, three hundred sixty-five thousand, forty".