267260780220 has 96 divisors (see below), whose sum is σ = 855898692096. Its totient is φ = 61040736000.

The previous prime is 267260780203. The next prime is 267260780263. The reversal of 267260780220 is 22087062762.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 295770 + ... + 788670.

It is an arithmetic number, because the mean of its divisors is an integer number (8915611376).

Almost surely, 2^267260780220 is an apocalyptic number.

267260780220 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 267260780220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (427949346048).

267260780220 is an abundant number, since it is smaller than the sum of its proper divisors (588637911876).

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

267260780220 is a wasteful number, since it uses less digits than its factorization.

267260780220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494211 (or 494209 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 42.

The spelling of 267260780220 in words is "two hundred sixty-seven billion, two hundred sixty million, seven hundred eighty thousand, two hundred twenty".