265772220773 has 8 divisors (see below), whose sum is σ = 275208219000. Its totient is φ = 256354318528.

The previous prime is 265772220739. The next prime is 265772220787. The reversal of 265772220773 is 377022277562.

It can be written as a sum of positive squares in 4 ways, for example, as 41037440929 + 224734779844 = 202577^2 + 474062^2 .

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 265772220773 - 2¹⁶ = 265772155237 is a prime.

It is a super-2 number, since 2×265772220773² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265772220073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4494098 + ... + 4552851.

It is an arithmetic number, because the mean of its divisors is an integer number (34401027375).

Almost surely, 2^265772220773 is an apocalyptic number.

It is an amenable number.

265772220773 is a deficient number, since it is larger than the sum of its proper divisors (9435998227).

265772220773 is a wasteful number, since it uses less digits than its factorization.

265772220773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9047991.

The product of its (nonzero) digits is 3457440, while the sum is 50.

The spelling of 265772220773 in words is "two hundred sixty-five billion, seven hundred seventy-two million, two hundred twenty thousand, seven hundred seventy-three".