265212123435240 has 128 divisors (see below), whose sum is σ = 812608343285760. Its totient is φ = 69214774356224.

The previous prime is 265212123435221. The next prime is 265212123435253. The reversal of 265212123435240 is 42534321212562.

It is a junction number, because it is equal to n+sod(n) for n = 265212123435192 and 265212123435201.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 104798497 + ... + 107299343.

It is an arithmetic number, because the mean of its divisors is an integer number (6348502681920).

Almost surely, 2^{265212123435240} is an apocalyptic number.

265212123435240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

265212123435240 is an abundant number, since it is smaller than the sum of its proper divisors (547396219850520).

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

265212123435240 is a wasteful number, since it uses less digits than its factorization.

265212123435240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2519711 (or 2519707 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 42.

The spelling of 265212123435240 in words is "two hundred sixty-five trillion, two hundred twelve billion, one hundred twenty-three million, four hundred thirty-five thousand, two hundred forty".