2156065424566 has 8 divisors (see below), whose sum is σ = 3234325980960. Its totient is φ = 1077956764248.

The previous prime is 2156065424509. The next prime is 2156065424567. The reversal of 2156065424566 is 6654245606512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2156065424567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37938526 + ... + 37995313.

It is an arithmetic number, because the mean of its divisors is an integer number (404290747620).

Almost surely, 2^{2156065424566} is an apocalyptic number.

2156065424566 is a deficient number, since it is larger than the sum of its proper divisors (1078260556394).

2156065424566 is a wasteful number, since it uses less digits than its factorization.

2156065424566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75948038.

The product of its (nonzero) digits is 10368000, while the sum is 52.

The spelling of 2156065424566 in words is "two trillion, one hundred fifty-six billion, sixty-five million, four hundred twenty-four thousand, five hundred sixty-six".