1061566072477 has 4 divisors (see below), whose sum is σ = 1061850907456. Its totient is φ = 1061281237500.

The previous prime is 1061566072453. The next prime is 1061566072493. The reversal of 1061566072477 is 7742706651601.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1061566072477 - 2⁷ = 1061566072349 is a prime.

It is a super-2 number, since 2×1061566072477² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1061566072417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142411899 + ... + 142419352.

It is an arithmetic number, because the mean of its divisors is an integer number (265462726864).

Almost surely, 2^{1061566072477} is an apocalyptic number.

It is an amenable number.

1061566072477 is a deficient number, since it is larger than the sum of its proper divisors (284834979).

1061566072477 is an equidigital number, since it uses as much as digits as its factorization.

1061566072477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284834978.

The product of its (nonzero) digits is 2963520, while the sum is 52.

The spelling of 1061566072477 in words is "one trillion, sixty-one billion, five hundred sixty-six million, seventy-two thousand, four hundred seventy-seven".