266672471520 has 384 divisors, whose sum is σ = 1034888279040. Its totient is φ = 56209489920.

The previous prime is 266672471477. The next prime is 266672471557. The reversal of 266672471520 is 25174276662.

It is a super-2 number, since 2×266672471520² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 266672471520.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 56388516 + ... + 56393244.

It is an arithmetic number, because the mean of its divisors is an integer number (2695021560).

Almost surely, 2^266672471520 is an apocalyptic number.

266672471520 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 266672471520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (517444139520).

266672471520 is an abundant number, since it is smaller than the sum of its proper divisors (768215807520).

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

266672471520 is a wasteful number, since it uses less digits than its factorization.

266672471520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6058 (or 6050 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 48.

The spelling of 266672471520 in words is "two hundred sixty-six billion, six hundred seventy-two million, four hundred seventy-one thousand, five hundred twenty".