264375066240 has 128 divisors (see below), whose sum is σ = 936328420800. Its totient is φ = 70500013056.

The previous prime is 264375066239. The next prime is 264375066247. The reversal of 264375066240 is 42660573462.

264375066240 is a `hidden beast` number, since 2 + 6 + 43 + 7 + 506 + 62 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (264375066247) 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, 7632462 + ... + 7667021.

Almost surely, 2^264375066240 is an apocalyptic number.

264375066240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

264375066240 is an abundant number, since it is smaller than the sum of its proper divisors (671953354560).

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

264375066240 is a wasteful number, since it uses less digits than its factorization.

264375066240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15299511 (or 15299493 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 45.

The spelling of 264375066240 in words is "two hundred sixty-four billion, three hundred seventy-five million, sixty-six thousand, two hundred forty".