2166144030552 has 128 divisors (see below), whose sum is σ = 5495000472000. Its totient is φ = 711516069888.

The previous prime is 2166144030529. The next prime is 2166144030571. The reversal of 2166144030552 is 2550304416612.

It is a super-2 number, since 2×2166144030552² (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 2166144030552.

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 31 ways as a sum of consecutive naturals, for example, 1006103908 + ... + 1006106060.

Almost surely, 2^{2166144030552} is an apocalyptic number.

It is an amenable number.

2166144030552 is an abundant number, since it is smaller than the sum of its proper divisors (3328856441448).

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

2166144030552 is a wasteful number, since it uses less digits than its factorization.

2166144030552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4405 (or 4401 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 2166144030552 in words is "two trillion, one hundred sixty-six billion, one hundred forty-four million, thirty thousand, five hundred fifty-two".