1001966642 has 16 divisors (see below), whose sum is σ = 1526532000. Its totient is φ = 493134048.

The previous prime is 1001966629. The next prime is 1001966659. The reversal of 1001966642 is 2466691001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 284609 + ... + 288107.

It is an arithmetic number, because the mean of its divisors is an integer number (95408250).

Almost surely, 2^1001966642 is an apocalyptic number.

1001966642 is a deficient number, since it is larger than the sum of its proper divisors (524565358).

1001966642 is a wasteful number, since it uses less digits than its factorization.

1001966642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5705.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 1001966642 is about 31653.8566686589. The cubic root of 1001966642 is about 1000.6551180599.

The spelling of 1001966642 in words is "one billion, one million, nine hundred sixty-six thousand, six hundred forty-two".