1066056220560 has 80 divisors (see below), whose sum is σ = 3310816326336. Its totient is φ = 283761913344.

The previous prime is 1066056220543. The next prime is 1066056220577. The reversal of 1066056220560 is 650226506601.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1066056220543) and next prime (1066056220577).

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×1066056220560² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3928959 + ... + 4191518.

Almost surely, 2^{1066056220560} is an apocalyptic number.

1066056220560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1066056220560 is an abundant number, since it is smaller than the sum of its proper divisors (2244760105776).

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

1066056220560 is a wasteful number, since it uses less digits than its factorization.

1066056220560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8121040 (or 8121034 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 39.

The spelling of 1066056220560 in words is "one trillion, sixty-six billion, fifty-six million, two hundred twenty thousand, five hundred sixty".