401663064833372 has 12 divisors (see below), whose sum is σ = 713401562913480. Its totient is φ = 197834046858096.

The previous prime is 401663064833369. The next prime is 401663064833383. The reversal of 401663064833372 is 273338460366104.

It is a super-2 number, since 2×401663064833372² (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, 749371389347 + ... + 749371389882.

It is an arithmetic number, because the mean of its divisors is an integer number (59450130242790).

Almost surely, 2^{401663064833372} is an apocalyptic number.

It is an amenable number.

401663064833372 is a deficient number, since it is larger than the sum of its proper divisors (311738498080108).

401663064833372 is a wasteful number, since it uses less digits than its factorization.

401663064833372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1498742779300 (or 1498742779298 counting only the distinct ones).

The product of its (nonzero) digits is 31352832, while the sum is 56.

The spelling of 401663064833372 in words is "four hundred one trillion, six hundred sixty-three billion, sixty-four million, eight hundred thirty-three thousand, three hundred seventy-two".