1241642566 has 32 divisors (see below), whose sum is σ = 2042357760. Its totient is φ = 563587200.

The previous prime is 1241642543. The next prime is 1241642621. The reversal of 1241642566 is 6652461421.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 347095 + ... + 350653.

It is an arithmetic number, because the mean of its divisors is an integer number (63823680).

Almost surely, 2^1241642566 is an apocalyptic number.

1241642566 is a deficient number, since it is larger than the sum of its proper divisors (800715194).

1241642566 is a wasteful number, since it uses less digits than its factorization.

1241642566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3940.

The product of its digits is 69120, while the sum is 37.

The square root of 1241642566 is about 35236.9488747252. The cubic root of 1241642566 is about 1074.8112352170.

The spelling of 1241642566 in words is "one billion, two hundred forty-one million, six hundred forty-two thousand, five hundred sixty-six".