2163554553612 has 24 divisors (see below), whose sum is σ = 5048329401136. Its totient is φ = 721179787968.

The previous prime is 2163554553577. The next prime is 2163554553661.

2163554553612 is nontrivially palindromic in base 10.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1411758 + ... + 2513994.

Almost surely, 2^{2163554553612} is an apocalyptic number.

It is an amenable number.

2163554553612 is an abundant number, since it is smaller than the sum of its proper divisors (2884774847524).

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

2163554553612 is a wasteful number, since it uses less digits than its factorization.

2163554553612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1265817 (or 1265815 counting only the distinct ones).

The product of its digits is 3240000, while the sum is 48.

The spelling of 2163554553612 in words is "two trillion, one hundred sixty-three billion, five hundred fifty-four million, five hundred fifty-three thousand, six hundred twelve".