1061220650571 has 6 divisors (see below), whose sum is σ = 1532874273060. Its totient is φ = 707480433708.

The previous prime is 1061220650563. The next prime is 1061220650587. The reversal of 1061220650571 is 1750560221601.

1061220650571 is a `hidden beast` number, since 1 + 0 + 6 + 1 + 2 + 20 + 65 + 0 + 571 = 666.

It is not a de Polignac number, because 1061220650571 - 2³ = 1061220650563 is a prime.

It is a super-2 number, since 2×1061220650571² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1061220650551) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 58956702801 + ... + 58956702818.

It is an arithmetic number, because the mean of its divisors is an integer number (255479045510).

Almost surely, 2^{1061220650571} is an apocalyptic number.

1061220650571 is a deficient number, since it is larger than the sum of its proper divisors (471653622489).

1061220650571 is a wasteful number, since it uses less digits than its factorization.

1061220650571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117913405625 (or 117913405622 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The spelling of 1061220650571 in words is "one trillion, sixty-one billion, two hundred twenty million, six hundred fifty thousand, five hundred seventy-one".