1631315022444 has 36 divisors (see below), whose sum is σ = 4123998057816. Its totient is φ = 543719428608.

The previous prime is 1631315022433. The next prime is 1631315022517. The reversal of 1631315022444 is 4442205131361.

1631315022444 is a `hidden beast` number, since 1 + 63 + 1 + 3 + 150 + 2 + 2 + 444 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1631315022444² (a number of 25 digits) contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 1631315022399 and 1631315022408.

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, 1796094 + ... + 2547269.

It is an arithmetic number, because the mean of its divisors is an integer number (114555501606).

Almost surely, 2^{1631315022444} is an apocalyptic number.

It is an amenable number.

1631315022444 is an abundant number, since it is smaller than the sum of its proper divisors (2492683035372).

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

1631315022444 is a wasteful number, since it uses less digits than its factorization.

1631315022444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4353806 (or 4353801 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 1631315022444 in words is "one trillion, six hundred thirty-one billion, three hundred fifteen million, twenty-two thousand, four hundred forty-four".