1020664612 has 24 divisors (see below), whose sum is σ = 1972024992. Its totient is φ = 458347200.

The previous prime is 1020664607. The next prime is 1020664613. The reversal of 1020664612 is 2164660201.

1020664612 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1020664612² = 2083512500378221088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1020664613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136089 + ... + 143392.

It is an arithmetic number, because the mean of its divisors is an integer number (82167708).

Almost surely, 2^1020664612 is an apocalyptic number.

It is an amenable number.

1020664612 is a deficient number, since it is larger than the sum of its proper divisors (951360380).

1020664612 is a wasteful number, since it uses less digits than its factorization.

1020664612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279579 (or 279577 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 1020664612 is about 31947.8420554503. The cubic root of 1020664612 is about 1006.8412939652.

The spelling of 1020664612 in words is "one billion, twenty million, six hundred sixty-four thousand, six hundred twelve".