265158637242 has 32 divisors (see below), whose sum is σ = 535620363264. Its totient is φ = 87502536000.

The previous prime is 265158637201. The next prime is 265158637243. The reversal of 265158637242 is 242736851562.

It is not an unprimeable number, because it can be changed into a prime (265158637243) 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, 10186588 + ... + 10212584.

It is an arithmetic number, because the mean of its divisors is an integer number (16738136352).

Almost surely, 2^265158637242 is an apocalyptic number.

265158637242 is an abundant number, since it is smaller than the sum of its proper divisors (270461726022).

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

265158637242 is a wasteful number, since it uses less digits than its factorization.

265158637242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42934.

The product of its digits is 4838400, while the sum is 51.

The spelling of 265158637242 in words is "two hundred sixty-five billion, one hundred fifty-eight million, six hundred thirty-seven thousand, two hundred forty-two".