2163551466044 has 12 divisors (see below), whose sum is σ = 3823702344168. Its totient is φ = 1071065082000.

The previous prime is 2163551466031. The next prime is 2163551466059. The reversal of 2163551466044 is 4406641553612.

It is a super-2 number, since 2×2163551466044² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2163551466044.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2677662302 + ... + 2677663109.

It is an arithmetic number, because the mean of its divisors is an integer number (318641862014).

Almost surely, 2^{2163551466044} is an apocalyptic number.

It is an amenable number.

2163551466044 is a deficient number, since it is larger than the sum of its proper divisors (1660150878124).

2163551466044 is a wasteful number, since it uses less digits than its factorization.

2163551466044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5355325516 (or 5355325514 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 47.

The spelling of 2163551466044 in words is "two trillion, one hundred sixty-three billion, five hundred fifty-one million, four hundred sixty-six thousand, forty-four".