1061020136566 has 16 divisors (see below), whose sum is σ = 1717533820800. Its totient is φ = 488679254208.

The previous prime is 1061020136543. The next prime is 1061020136599. The reversal of 1061020136566 is 6656310201601.

It is a super-2 number, since 2×1061020136566² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42585111 + ... + 42610018.

It is an arithmetic number, because the mean of its divisors is an integer number (107345863800).

Almost surely, 2^{1061020136566} is an apocalyptic number.

1061020136566 is a deficient number, since it is larger than the sum of its proper divisors (656513684234).

1061020136566 is a wasteful number, since it uses less digits than its factorization.

1061020136566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85195623.

The product of its (nonzero) digits is 38880, while the sum is 37.

The spelling of 1061020136566 in words is "one trillion, sixty-one billion, twenty million, one hundred thirty-six thousand, five hundred sixty-six".