1631220246216 has 48 divisors (see below), whose sum is σ = 4819514366160. Its totient is φ = 494309165280.

The previous prime is 1631220246179. The next prime is 1631220246247. The reversal of 1631220246216 is 6126420221361.

1631220246216 is a `hidden beast` number, since 1 + 6 + 3 + 1 + 2 + 2 + 0 + 24 + 621 + 6 = 666.

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

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, 1029809970 + ... + 1029811553.

It is an arithmetic number, because the mean of its divisors is an integer number (100406549295).

Almost surely, 2^{1631220246216} is an apocalyptic number.

It is an amenable number.

1631220246216 is an abundant number, since it is smaller than the sum of its proper divisors (3188294119944).

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

1631220246216 is a wasteful number, since it uses less digits than its factorization.

1631220246216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2059621546 (or 2059621539 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

Adding to 1631220246216 its reverse (6126420221361), we get a palindrome (7757640467577).

The spelling of 1631220246216 in words is "one trillion, six hundred thirty-one billion, two hundred twenty million, two hundred forty-six thousand, two hundred sixteen".