1066001555000 has 80 divisors (see below), whose sum is σ = 2629096701000. Its totient is φ = 403958448000.

The previous prime is 1066001554999. The next prime is 1066001555029. The reversal of 1066001555000 is 5551006601.

1066001555000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1066001555000² (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 19 ways as a sum of consecutive naturals, for example, 5515535 + ... + 5705534.

Almost surely, 2^{1066001555000} is an apocalyptic number.

1066001555000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1066001555000 is an abundant number, since it is smaller than the sum of its proper divisors (1563095146000).

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

1066001555000 is a wasteful number, since it uses less digits than its factorization.

1066001555000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11221114 (or 11221095 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 29.

The spelling of 1066001555000 in words is "one trillion, sixty-six billion, one million, five hundred fifty-five thousand".