265128703061 has 8 divisors (see below), whose sum is σ = 266123773824. Its totient is φ = 264134960640.

The previous prime is 265128703043. The next prime is 265128703067. The reversal of 265128703061 is 160307821562.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 265128703061 - 2²² = 265124508757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265128703067) 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, 68756 + ... + 731426.

It is an arithmetic number, because the mean of its divisors is an integer number (33265471728).

Almost surely, 2^265128703061 is an apocalyptic number.

It is an amenable number.

265128703061 is a deficient number, since it is larger than the sum of its proper divisors (995070763).

265128703061 is a wasteful number, since it uses less digits than its factorization.

265128703061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664171.

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 265128703061 in words is "two hundred sixty-five billion, one hundred twenty-eight million, seven hundred three thousand, sixty-one".