1672104065544 has 288 divisors, whose sum is σ = 5154779185920. Its totient is φ = 488781216000.

The previous prime is 1672104065519. The next prime is 1672104065551. The reversal of 1672104065544 is 4455604012761.

1672104065544 is a `hidden beast` number, since 1 + 6 + 7 + 2 + 1 + 0 + 40 + 65 + 544 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1672104065544.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 85603059 + ... + 85622589.

It is an arithmetic number, because the mean of its divisors is an integer number (17898538840).

Almost surely, 2^{1672104065544} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1672104065544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2577389592960).

1672104065544 is an abundant number, since it is smaller than the sum of its proper divisors (3482675120376).

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

1672104065544 is a wasteful number, since it uses less digits than its factorization.

1672104065544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19913 (or 19895 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 45.

The spelling of 1672104065544 in words is "one trillion, six hundred seventy-two billion, one hundred four million, sixty-five thousand, five hundred forty-four".