1631406210606 has 24 divisors (see below), whose sum is σ = 3534738755184. Its totient is φ = 543798178080.

The previous prime is 1631406210593. The next prime is 1631406210671. The reversal of 1631406210606 is 6060126041361.

It is a happy number.

1631406210606 is a `hidden beast` number, since 1 + 6 + 3 + 1 + 40 + 6 + 2 + 1 + 0 + 606 = 666.

It is a super-2 number, since 2×1631406210606² (a number of 25 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 11 ways as a sum of consecutive naturals, for example, 3443311 + ... + 3888341.

It is an arithmetic number, because the mean of its divisors is an integer number (147280781466).

Almost surely, 2^{1631406210606} is an apocalyptic number.

1631406210606 is an abundant number, since it is smaller than the sum of its proper divisors (1903332544578).

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

1631406210606 is a wasteful number, since it uses less digits than its factorization.

1631406210606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648696 (or 648693 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The spelling of 1631406210606 in words is "one trillion, six hundred thirty-one billion, four hundred six million, two hundred ten thousand, six hundred six".