401291376266 has 16 divisors (see below), whose sum is σ = 685208991168. Its totient is φ = 174474511200.

The previous prime is 401291376259. The next prime is 401291376281. The reversal of 401291376266 is 662673192104.

It is a super-3 number, since 3×401291376266³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 401291376266.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 396532475 + ... + 396533486.

It is an arithmetic number, because the mean of its divisors is an integer number (42825561948).

Almost surely, 2^401291376266 is an apocalyptic number.

401291376266 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

401291376266 is a deficient number, since it is larger than the sum of its proper divisors (283917614902).

401291376266 is a wasteful number, since it uses less digits than its factorization.

401291376266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793065997.

The product of its (nonzero) digits is 653184, while the sum is 47.

The spelling of 401291376266 in words is "four hundred one billion, two hundred ninety-one million, three hundred seventy-six thousand, two hundred sixty-six".