2145505144004 has 48 divisors (see below), whose sum is σ = 3961158450816. Its totient is φ = 1014791500800.

The previous prime is 2145505143989. The next prime is 2145505144021. The reversal of 2145505144004 is 4004415055412.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12236999 + ... + 12411089.

It is an arithmetic number, because the mean of its divisors is an integer number (82524134392).

Almost surely, 2^{2145505144004} is an apocalyptic number.

It is an amenable number.

2145505144004 is a deficient number, since it is larger than the sum of its proper divisors (1815653306812).

2145505144004 is a wasteful number, since it uses less digits than its factorization.

2145505144004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175596 (or 175594 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 35.

The spelling of 2145505144004 in words is "two trillion, one hundred forty-five billion, five hundred five million, one hundred forty-four thousand, four".