401266412766 has 48 divisors (see below), whose sum is σ = 905955289200. Its totient is φ = 128200539264.

The previous prime is 401266412753. The next prime is 401266412773. The reversal of 401266412766 is 667214662104.

401266412766 is a `hidden beast` number, since 40 + 126 + 6 + 412 + 76 + 6 = 666.

It is a super-2 number, since 2×401266412766² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2733996 + ... + 2877023.

It is an arithmetic number, because the mean of its divisors is an integer number (18874068525).

Almost surely, 2^401266412766 is an apocalyptic number.

401266412766 is an abundant number, since it is smaller than the sum of its proper divisors (504688876434).

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

401266412766 is a wasteful number, since it uses less digits than its factorization.

401266412766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5611193 (or 5611190 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The spelling of 401266412766 in words is "four hundred one billion, two hundred sixty-six million, four hundred twelve thousand, seven hundred sixty-six".