40163631406 has 16 divisors (see below), whose sum is σ = 61723812528. Its totient is φ = 19589169600.

The previous prime is 40163631371. The next prime is 40163631439. The reversal of 40163631406 is 60413636104.

It is a super-2 number, since 2×40163631406² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 601576 + ... + 664996.

It is an arithmetic number, because the mean of its divisors is an integer number (3857738283).

Almost surely, 2^40163631406 is an apocalyptic number.

40163631406 is a deficient number, since it is larger than the sum of its proper divisors (21560181122).

40163631406 is a wasteful number, since it uses less digits than its factorization.

40163631406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71187.

The product of its (nonzero) digits is 31104, while the sum is 34.

The spelling of 40163631406 in words is "forty billion, one hundred sixty-three million, six hundred thirty-one thousand, four hundred six".