1066435520427 has 12 divisors (see below), whose sum is σ = 1540496702160. Its totient is φ = 710915549328.

The previous prime is 1066435520413. The next prime is 1066435520441. The reversal of 1066435520427 is 7240255346601.

1066435520427 is a `hidden beast` number, since 1 + 0 + 6 + 6 + 435 + 5 + 204 + 2 + 7 = 666.

1066435520427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1066435520413) and next prime (1066435520441).

It is not a de Polignac number, because 1066435520427 - 2⁶ = 1066435520363 is a prime.

It is a super-2 number, since 2×1066435520427² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1066435520497) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3292063 + ... + 3601464.

It is an arithmetic number, because the mean of its divisors is an integer number (128374725180).

Almost surely, 2^{1066435520427} is an apocalyptic number.

1066435520427 is a deficient number, since it is larger than the sum of its proper divisors (474061181733).

1066435520427 is a wasteful number, since it uses less digits than its factorization.

1066435520427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6910722 (or 6910719 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 45.

The spelling of 1066435520427 in words is "one trillion, sixty-six billion, four hundred thirty-five million, five hundred twenty thousand, four hundred twenty-seven".