1066688233636 has 27 divisors (see below), whose sum is σ = 1933401726529. Its totient is φ = 514924021808.

The previous prime is 1066688233579. The next prime is 1066688233657. The reversal of 1066688233636 is 6363328866601.

The square root of 1066688233636 is 1032806.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 559345435236 + 507342798400 = 747894^2 + 712280^2 .

It is a super-2 number, since 2×1066688233636² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (58).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 59893845 + ... + 59911651.

Almost surely, 2^{1066688233636} is an apocalyptic number.

1066688233636 is the 1032806-th square number.

It is an amenable number.

1066688233636 is a deficient number, since it is larger than the sum of its proper divisors (866713492893).

1066688233636 is an frugal number, since it uses more digits than its factorization.

1066688233636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35676 (or 17838 counting only the distinct ones).

The product of its (nonzero) digits is 26873856, while the sum is 58.

The spelling of 1066688233636 in words is "one trillion, sixty-six billion, six hundred eighty-eight million, two hundred thirty-three thousand, six hundred thirty-six".