265560857772 has 48 divisors (see below), whose sum is σ = 725434547712. Its totient is φ = 74023931520.

The previous prime is 265560857707. The next prime is 265560857801. The reversal of 265560857772 is 277758065562.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38550688 + ... + 38557575.

It is an arithmetic number, because the mean of its divisors is an integer number (15113219744).

Almost surely, 2^265560857772 is an apocalyptic number.

It is an amenable number.

265560857772 is an abundant number, since it is smaller than the sum of its proper divisors (459873689940).

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

265560857772 is a wasteful number, since it uses less digits than its factorization.

265560857772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77108318 (or 77108316 counting only the distinct ones).

The product of its (nonzero) digits is 49392000, while the sum is 60.

The spelling of 265560857772 in words is "two hundred sixty-five billion, five hundred sixty million, eight hundred fifty-seven thousand, seven hundred seventy-two".