1066166016650 has 96 divisors (see below), whose sum is σ = 2343038607360. Its totient is φ = 353211768000.

The previous prime is 1066166016613. The next prime is 1066166016659. The reversal of 1066166016650 is 566106616601.

1066166016650 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 2×1066166016650² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1066166016659) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7075595 + ... + 7224705.

It is an arithmetic number, because the mean of its divisors is an integer number (24406652160).

Almost surely, 2^{1066166016650} is an apocalyptic number.

1066166016650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1066166016650 is an abundant number, since it is smaller than the sum of its proper divisors (1276872590710).

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

1066166016650 is a wasteful number, since it uses less digits than its factorization.

1066166016650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149820 (or 149815 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 44.

The spelling of 1066166016650 in words is "one trillion, sixty-six billion, one hundred sixty-six million, sixteen thousand, six hundred fifty".