1026661612 has 12 divisors (see below), whose sum is σ = 1801477216. Its totient is φ = 511953840.

The previous prime is 1026661591. The next prime is 1026661663. The reversal of 1026661612 is 2161666201.

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 3 ways as a sum of consecutive naturals, for example, 342564 + ... + 345547.

Almost surely, 2^1026661612 is an apocalyptic number.

It is an amenable number.

1026661612 is a deficient number, since it is larger than the sum of its proper divisors (774815604).

1026661612 is a wasteful number, since it uses less digits than its factorization.

1026661612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688488 (or 688486 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 1026661612 is about 32041.5606985677. The cubic root of 1026661612 is about 1008.8093710971.

The spelling of 1026661612 in words is "one billion, twenty-six million, six hundred sixty-one thousand, six hundred twelve".