1061664206 has 8 divisors (see below), whose sum is σ = 1596836640. Its totient is φ = 529385328.

The previous prime is 1061664203. The next prime is 1061664221. The reversal of 1061664206 is 6024661601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1061664206² = 2254261772603220872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1061664203) 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, 722471 + ... + 723938.

It is an arithmetic number, because the mean of its divisors is an integer number (199604580).

Almost surely, 2^1061664206 is an apocalyptic number.

1061664206 is a deficient number, since it is larger than the sum of its proper divisors (535172434).

1061664206 is a wasteful number, since it uses less digits than its factorization.

1061664206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1446778.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 1061664206 is about 32583.1890090580. The cubic root of 1061664206 is about 1020.1461427151.

The spelling of 1061664206 in words is "one billion, sixty-one million, six hundred sixty-four thousand, two hundred six".