1220565676 has 12 divisors (see below), whose sum is σ = 2330170920. Its totient is φ = 554802560.

The previous prime is 1220565667. The next prime is 1220565683. The reversal of 1220565676 is 6765650221.

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, 13870021 + ... + 13870108.

It is an arithmetic number, because the mean of its divisors is an integer number (194180910).

Almost surely, 2^1220565676 is an apocalyptic number.

It is an amenable number.

1220565676 is a deficient number, since it is larger than the sum of its proper divisors (1109605244).

1220565676 is a wasteful number, since it uses less digits than its factorization.

1220565676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27740144 (or 27740142 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 40.

The square root of 1220565676 is about 34936.5950830930. The cubic root of 1220565676 is about 1068.6948526154.

The spelling of 1220565676 in words is "one billion, two hundred twenty million, five hundred sixty-five thousand, six hundred seventy-six".