266740740372 has 48 divisors (see below), whose sum is σ = 650604953600. Its totient is φ = 84956208480.

The previous prime is 266740740271. The next prime is 266740740439. The reversal of 266740740372 is 273047047662.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4508872 + ... + 4567647.

Almost surely, 2^266740740372 is an apocalyptic number.

It is an amenable number.

266740740372 is an abundant number, since it is smaller than the sum of its proper divisors (383864213228).

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

266740740372 is a wasteful number, since it uses less digits than its factorization.

266740740372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9076636 (or 9076634 counting only the distinct ones).

The product of its (nonzero) digits is 2370816, while the sum is 48.

The spelling of 266740740372 in words is "two hundred sixty-six billion, seven hundred forty million, seven hundred forty thousand, three hundred seventy-two".