265640353154264 has 32 divisors (see below), whose sum is σ = 543356373032640. Its totient is φ = 120745369466400.

The previous prime is 265640353154249. The next prime is 265640353154269. The reversal of 265640353154264 is 462451353046562.

265640353154264 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265640353154269) 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, 44625347 + ... + 50226509.

It is an arithmetic number, because the mean of its divisors is an integer number (16979886657270).

Almost surely, 2^{265640353154264} is an apocalyptic number.

It is an amenable number.

265640353154264 is an abundant number, since it is smaller than the sum of its proper divisors (277716019878376).

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

265640353154264 is a wasteful number, since it uses less digits than its factorization.

265640353154264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6140111 (or 6140107 counting only the distinct ones).

The product of its (nonzero) digits is 62208000, while the sum is 56.

The spelling of 265640353154264 in words is "two hundred sixty-five trillion, six hundred forty billion, three hundred fifty-three million, one hundred fifty-four thousand, two hundred sixty-four".