266671022064 has 40 divisors (see below), whose sum is σ = 689955198672. Its totient is φ = 88754204160.

The previous prime is 266671021927. The next prime is 266671022071. The reversal of 266671022064 is 460220176662.

It is a super-2 number, since 2×266671022064² (a number of 24 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 4222597 + ... + 4285284.

Almost surely, 2^266671022064 is an apocalyptic number.

266671022064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

266671022064 is an abundant number, since it is smaller than the sum of its proper divisors (423284176608).

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

266671022064 is a wasteful number, since it uses less digits than its factorization.

266671022064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8508545 (or 8508539 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 42.

The spelling of 266671022064 in words is "two hundred sixty-six billion, six hundred seventy-one million, twenty-two thousand, sixty-four".