266030640407 has 24 divisors (see below), whose sum is σ = 325901006640. Its totient is φ = 215925937920.

The previous prime is 266030640401. The next prime is 266030640439. The reversal of 266030640407 is 704046030662.

It is not a de Polignac number, because 266030640407 - 2³⁶ = 197311163671 is a prime.

It is a super-2 number, since 2×266030640407² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266030640401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2003423 + ... + 2132079.

It is an arithmetic number, because the mean of its divisors is an integer number (13579208610).

Almost surely, 2^266030640407 is an apocalyptic number.

266030640407 is a deficient number, since it is larger than the sum of its proper divisors (59870366233).

266030640407 is a wasteful number, since it uses less digits than its factorization.

266030640407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130911 (or 130904 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 38.

The spelling of 266030640407 in words is "two hundred sixty-six billion, thirty million, six hundred forty thousand, four hundred seven".