265553220630 has 16 divisors (see below), whose sum is σ = 637327729584. Its totient is φ = 70814192160.

The previous prime is 265553220589. The next prime is 265553220637. The reversal of 265553220630 is 36022355562.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265553220637) 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, 4425886981 + ... + 4425887040.

It is an arithmetic number, because the mean of its divisors is an integer number (39832983099).

Almost surely, 2^265553220630 is an apocalyptic number.

265553220630 is an abundant number, since it is smaller than the sum of its proper divisors (371774508954).

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

265553220630 is a wasteful number, since it uses less digits than its factorization.

265553220630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8851774031.

The product of its (nonzero) digits is 324000, while the sum is 39.

The spelling of 265553220630 in words is "two hundred sixty-five billion, five hundred fifty-three million, two hundred twenty thousand, six hundred thirty".