1020668512 has 24 divisors (see below), whose sum is σ = 2010155616. Its totient is φ = 510152832.

The previous prime is 1020668507. The next prime is 1020668527. The reversal of 1020668512 is 2158660201.

It is a super-2 number, since 2×1020668512² = 2083528422776588288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162258 + ... + 168430.

It is an arithmetic number, because the mean of its divisors is an integer number (83756484).

Almost surely, 2^1020668512 is an apocalyptic number.

It is an amenable number.

1020668512 is a deficient number, since it is larger than the sum of its proper divisors (989487104).

1020668512 is an equidigital number, since it uses as much as digits as its factorization.

1020668512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11350 (or 11342 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 1020668512 is about 31947.9030923784. The cubic root of 1020668512 is about 1006.8425763570.

The spelling of 1020668512 in words is "one billion, twenty million, six hundred sixty-eight thousand, five hundred twelve".