1066144587900 has 144 divisors (see below), whose sum is σ = 3639107082240. Its totient is φ = 235829203200.

The previous prime is 1066144587829. The next prime is 1066144587919. The reversal of 1066144587900 is 97854416601.

It is a super-2 number, since 2×1066144587900² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8123415 + ... + 8253614.

It is an arithmetic number, because the mean of its divisors is an integer number (25271576960).

Almost surely, 2^{1066144587900} is an apocalyptic number.

1066144587900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1066144587900 is an abundant number, since it is smaller than the sum of its proper divisors (2572962494340).

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

1066144587900 is a wasteful number, since it uses less digits than its factorization.

1066144587900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16377084 (or 16377077 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 51.

The spelling of 1066144587900 in words is "one trillion, sixty-six billion, one hundred forty-four million, five hundred eighty-seven thousand, nine hundred".