1301165556 has 12 divisors (see below), whose sum is σ = 3036052992. Its totient is φ = 433721848.

The previous prime is 1301165521. The next prime is 1301165597. The reversal of 1301165556 is 6555611031.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

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, 54215220 + ... + 54215243.

It is an arithmetic number, because the mean of its divisors is an integer number (253004416).

Almost surely, 2^1301165556 is an apocalyptic number.

It is an amenable number.

1301165556 is an abundant number, since it is smaller than the sum of its proper divisors (1734887436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1301165556 is a wasteful number, since it uses less digits than its factorization.

1301165556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108430470 (or 108430468 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 33.

The square root of 1301165556 is about 36071.6724868698. The cubic root of 1301165556 is about 1091.7189598658.

Adding to 1301165556 its reverse (6555611031), we get a palindrome (7856776587).

The spelling of 1301165556 in words is "one billion, three hundred one million, one hundred sixty-five thousand, five hundred fifty-six".