2165020547548 has 24 divisors (see below), whose sum is σ = 3794101723440. Its totient is φ = 1080991739520.

The previous prime is 2165020547507. The next prime is 2165020547563. The reversal of 2165020547548 is 8457450205612.

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, 44579463 + ... + 44628001.

It is an arithmetic number, because the mean of its divisors is an integer number (158087571810).

Almost surely, 2^{2165020547548} is an apocalyptic number.

It is an amenable number.

2165020547548 is a deficient number, since it is larger than the sum of its proper divisors (1629081175892).

2165020547548 is a wasteful number, since it uses less digits than its factorization.

2165020547548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63957 (or 63955 counting only the distinct ones).

The product of its (nonzero) digits is 2688000, while the sum is 49.

The spelling of 2165020547548 in words is "two trillion, one hundred sixty-five billion, twenty million, five hundred forty-seven thousand, five hundred forty-eight".