265161270157 has 24 divisors (see below), whose sum is σ = 309435033600. Its totient is φ = 226558452960.

The previous prime is 265161270139. The next prime is 265161270193. The reversal of 265161270157 is 751072161562.

It is not a de Polignac number, because 265161270157 - 2⁷ = 265161270029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265161270197) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24548844 + ... + 24559642.

It is an arithmetic number, because the mean of its divisors is an integer number (12893126400).

Almost surely, 2^265161270157 is an apocalyptic number.

It is an amenable number.

265161270157 is a deficient number, since it is larger than the sum of its proper divisors (44273763443).

265161270157 is a wasteful number, since it uses less digits than its factorization.

265161270157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12361 (or 12354 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 43.

The spelling of 265161270157 in words is "two hundred sixty-five billion, one hundred sixty-one million, two hundred seventy thousand, one hundred fifty-seven".