266373999960 has 64 divisors (see below), whose sum is σ = 802611698400. Its totient is φ = 70722871296.

The previous prime is 266373999959. The next prime is 266373999961. The reversal of 266373999960 is 69999373662.

It is an interprime number because it is at equal distance from previous prime (266373999959) and next prime (266373999961).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266373999961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4819209 + ... + 4874168.

Almost surely, 2^266373999960 is an apocalyptic number.

266373999960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266373999960 is an abundant number, since it is smaller than the sum of its proper divisors (536237698440).

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

266373999960 is a wasteful number, since it uses less digits than its factorization.

266373999960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9693620 (or 9693616 counting only the distinct ones).

The product of its (nonzero) digits is 178564176, while the sum is 69.

The spelling of 266373999960 in words is "two hundred sixty-six billion, three hundred seventy-three million, nine hundred ninety-nine thousand, nine hundred sixty".