1631163064212 has 144 divisors (see below), whose sum is σ = 4545045872640. Its totient is φ = 489135124800.

The previous prime is 1631163064189. The next prime is 1631163064241. The reversal of 1631163064212 is 2124603611361.

1631163064212 is a `hidden beast` number, since 1 + 6 + 3 + 1 + 1 + 6 + 3 + 0 + 642 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 58680037 + ... + 58707827.

It is an arithmetic number, because the mean of its divisors is an integer number (31562818560).

Almost surely, 2^{1631163064212} is an apocalyptic number.

1631163064212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1631163064212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2272522936320).

1631163064212 is an abundant number, since it is smaller than the sum of its proper divisors (2913882808428).

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

1631163064212 is a wasteful number, since it uses less digits than its factorization.

1631163064212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29354 (or 29349 counting only the distinct ones).

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

Adding to 1631163064212 its reverse (2124603611361), we get a palindrome (3755766675573).

The spelling of 1631163064212 in words is "one trillion, six hundred thirty-one billion, one hundred sixty-three million, sixty-four thousand, two hundred twelve".