1061555206 has 16 divisors (see below), whose sum is σ = 1604252160. Its totient is φ = 526814280.

The previous prime is 1061555203. The next prime is 1061555249. The reversal of 1061555206 is 6025551601.

It is a super-2 number, since 2×1061555206² = 2253798910771404872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1061555203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 268915 + ... + 272833.

It is an arithmetic number, because the mean of its divisors is an integer number (100265760).

Almost surely, 2^1061555206 is an apocalyptic number.

1061555206 is a deficient number, since it is larger than the sum of its proper divisors (542696954).

1061555206 is a wasteful number, since it uses less digits than its factorization.

1061555206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4899.

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 1061555206 is about 32581.5163244438. The cubic root of 1061555206 is about 1020.1112290595. Note that the first 3 decimals are identical.

The spelling of 1061555206 in words is "one billion, sixty-one million, five hundred fifty-five thousand, two hundred six".