401661201366104 has 16 divisors (see below), whose sum is σ = 753114965784720. Its totient is φ = 200830543823520.

The previous prime is 401661201366097. The next prime is 401661201366151. The reversal of 401661201366104 is 401663102166104.

It is a happy number.

It is a super-2 number, since 2×401661201366104² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48587882 + ... + 56250374.

It is an arithmetic number, because the mean of its divisors is an integer number (47069685361545).

Almost surely, 2^{401661201366104} is an apocalyptic number.

It is an amenable number.

401661201366104 is a deficient number, since it is larger than the sum of its proper divisors (351453764418616).

401661201366104 is a wasteful number, since it uses less digits than its factorization.

401661201366104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14214890 (or 14214886 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 41.

The spelling of 401661201366104 in words is "four hundred one trillion, six hundred sixty-one billion, two hundred one million, three hundred sixty-six thousand, one hundred four".