401266745226 has 96 divisors (see below), whose sum is σ = 895134240000. Its totient is φ = 129833141760.

The previous prime is 401266745183. The next prime is 401266745227. The reversal of 401266745226 is 622547662104.

401266745226 is a `hidden beast` number, since 40 + 1 + 26 + 67 + 4 + 522 + 6 = 666.

It is a super-2 number, since 2×401266745226² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401266745227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 135150670 + ... + 135153638.

It is an arithmetic number, because the mean of its divisors is an integer number (9324315000).

Almost surely, 2^401266745226 is an apocalyptic number.

401266745226 is an abundant number, since it is smaller than the sum of its proper divisors (493867494774).

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

401266745226 is a wasteful number, since it uses less digits than its factorization.

401266745226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3884 (or 3881 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 45.

The spelling of 401266745226 in words is "four hundred one billion, two hundred sixty-six million, seven hundred forty-five thousand, two hundred twenty-six".