1612563565044 has 24 divisors (see below), whose sum is σ = 3763091168928. Its totient is φ = 537457924000.

The previous prime is 1612563565033. The next prime is 1612563565069. The reversal of 1612563565044 is 4405653652161.

It is a happy number.

It is a super-2 number, since 2×1612563565044² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1612563564984 and 1612563565002.

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 7 ways as a sum of consecutive naturals, for example, 7801782 + ... + 8005805.

It is an arithmetic number, because the mean of its divisors is an integer number (156795465372).

Almost surely, 2^{1612563565044} is an apocalyptic number.

It is an amenable number.

1612563565044 is an abundant number, since it is smaller than the sum of its proper divisors (2150527603884).

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

1612563565044 is a wasteful number, since it uses less digits than its factorization.

1612563565044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15816095 (or 15816093 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 48.

The spelling of 1612563565044 in words is "one trillion, six hundred twelve billion, five hundred sixty-three million, five hundred sixty-five thousand, forty-four".