3161211464544 has 48 divisors (see below), whose sum is σ = 9483634395648. Its totient is φ = 903203275392.

The previous prime is 3161211464539. The next prime is 3161211464581. The reversal of 3161211464544 is 4454641121613.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 3161211464496 and 3161211464505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2352091192 + ... + 2352092535.

It is an arithmetic number, because the mean of its divisors is an integer number (197575716576).

Almost surely, 2^{3161211464544} is an apocalyptic number.

It is an amenable number.

3161211464544 is an abundant number, since it is smaller than the sum of its proper divisors (6322422931104).

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

3161211464544 is a wasteful number, since it uses less digits than its factorization.

3161211464544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4704183747 (or 4704183739 counting only the distinct ones).

The product of its digits is 276480, while the sum is 42.

The spelling of 3161211464544 in words is "three trillion, one hundred sixty-one billion, two hundred eleven million, four hundred sixty-four thousand, five hundred forty-four".