266044046420 has 24 divisors (see below), whose sum is σ = 559083525000. Its totient is φ = 106343137152.

The previous prime is 266044046383. The next prime is 266044046441. The reversal of 266044046420 is 24640440662.

It can be written as a sum of positive squares in 4 ways, for example, as 17733183556 + 248310862864 = 133166^2 + 498308^2 .

It is a super-2 number, since 2×266044046420² (a number of 24 digits) contains 22 as substring.

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, 4625795 + ... + 4682954.

It is an arithmetic number, because the mean of its divisors is an integer number (23295146875).

Almost surely, 2^266044046420 is an apocalyptic number.

266044046420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266044046420 is an abundant number, since it is smaller than the sum of its proper divisors (293039478580).

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

266044046420 is a wasteful number, since it uses less digits than its factorization.

266044046420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9310187 (or 9310185 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 38.

The spelling of 266044046420 in words is "two hundred sixty-six billion, forty-four million, forty-six thousand, four hundred twenty".