1061055560551 has 4 divisors (see below), whose sum is σ = 1212634926352. Its totient is φ = 909476194752.

The previous prime is 1061055560531. The next prime is 1061055560569. The reversal of 1061055560551 is 1550655501601.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1061055560551 - 2²¹ = 1061053463399 is a prime.

It is a super-2 number, since 2×1061055560551² (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 (1061055560531) 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, 75789682890 + ... + 75789682903.

It is an arithmetic number, because the mean of its divisors is an integer number (303158731588).

Almost surely, 2^{1061055560551} is an apocalyptic number.

1061055560551 is a deficient number, since it is larger than the sum of its proper divisors (151579365801).

1061055560551 is an equidigital number, since it uses as much as digits as its factorization.

1061055560551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151579365800.

The product of its (nonzero) digits is 112500, while the sum is 40.

The spelling of 1061055560551 in words is "one trillion, sixty-one billion, fifty-five million, five hundred sixty thousand, five hundred fifty-one".