263557672960 has 104 divisors (see below), whose sum is σ = 632827486080. Its totient is φ = 105362030592.

The previous prime is 263557672943. The next prime is 263557672981. The reversal of 263557672960 is 69276755362.

It is a junction number, because it is equal to n+sod(n) for n = 263557672895 and 263557672904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55682754 + ... + 55687486.

Almost surely, 2^263557672960 is an apocalyptic number.

263557672960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 263557672960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (316413743040).

263557672960 is an abundant number, since it is smaller than the sum of its proper divisors (369269813120).

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

263557672960 is an equidigital number, since it uses as much as digits as its factorization.

263557672960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7481 (or 7459 counting only the distinct ones).

The product of its (nonzero) digits is 28576800, while the sum is 58.

The spelling of 263557672960 in words is "two hundred sixty-three billion, five hundred fifty-seven million, six hundred seventy-two thousand, nine hundred sixty".