266697434004 has 24 divisors (see below), whose sum is σ = 625552101888. Its totient is φ = 88433703360.

The previous prime is 266697433993. The next prime is 266697434027. The reversal of 266697434004 is 400434796662.

It is a super-2 number, since 2×266697434004² (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, 58177777 + ... + 58182360.

It is an arithmetic number, because the mean of its divisors is an integer number (26064670912).

Almost surely, 2^266697434004 is an apocalyptic number.

It is an amenable number.

266697434004 is an abundant number, since it is smaller than the sum of its proper divisors (358854667884).

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

266697434004 is a wasteful number, since it uses less digits than its factorization.

266697434004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116360335 (or 116360333 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 51.

The spelling of 266697434004 in words is "two hundred sixty-six billion, six hundred ninety-seven million, four hundred thirty-four thousand, four".