1061420066 has 24 divisors (see below), whose sum is σ = 1949550480. Its totient is φ = 430951752.

The previous prime is 1061420057. The next prime is 1061420071. The reversal of 1061420066 is 6600241601.

It is a happy number.

It is a super-2 number, since 2×1061420066² = 2253225113014888712, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 283160 + ... + 286883.

It is an arithmetic number, because the mean of its divisors is an integer number (81231270).

Almost surely, 2^1061420066 is an apocalyptic number.

1061420066 is a deficient number, since it is larger than the sum of its proper divisors (888130414).

1061420066 is a wasteful number, since it uses less digits than its factorization.

1061420066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570078 (or 570071 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 1061420066 is about 32579.4423831962. The cubic root of 1061420066 is about 1020.0679392143.

Adding to 1061420066 its reverse (6600241601), we get a palindrome (7661661667).

The spelling of 1061420066 in words is "one billion, sixty-one million, four hundred twenty thousand, sixty-six".