266393842632 has 80 divisors (see below), whose sum is σ = 778590743040. Its totient is φ = 84937162464.

The previous prime is 266393842619. The next prime is 266393842651. The reversal of 266393842632 is 236248393662.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8922088 + ... + 8951895.

It is an arithmetic number, because the mean of its divisors is an integer number (9732384288).

Almost surely, 2^266393842632 is an apocalyptic number.

It is an amenable number.

266393842632 is an abundant number, since it is smaller than the sum of its proper divisors (512196900408).

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

266393842632 is a wasteful number, since it uses less digits than its factorization.

266393842632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17874024 (or 17874011 counting only the distinct ones).

The product of its digits is 13436928, while the sum is 54.

The spelling of 266393842632 in words is "two hundred sixty-six billion, three hundred ninety-three million, eight hundred forty-two thousand, six hundred thirty-two".