1061631646 has 8 divisors (see below), whose sum is σ = 1592648784. Its totient is φ = 530748720.

The previous prime is 1061631607. The next prime is 1061631653. The reversal of 1061631646 is 6461361601.

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

It is a super-2 number, since 2×1061631646² = 2254123503577338632, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10650 + ... + 47293.

It is an arithmetic number, because the mean of its divisors is an integer number (199081098).

Almost surely, 2^1061631646 is an apocalyptic number.

1061631646 is a deficient number, since it is larger than the sum of its proper divisors (531017138).

1061631646 is an equidigital number, since it uses as much as digits as its factorization.

1061631646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67106.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 1061631646 is about 32582.6893610702. The cubic root of 1061631646 is about 1020.1357137120.

The spelling of 1061631646 in words is "one billion, sixty-one million, six hundred thirty-one thousand, six hundred forty-six".