1550113164 has 18 divisors (see below), whose sum is σ = 3918341700. Its totient is φ = 516704376.

The previous prime is 1550113067. The next prime is 1550113237. The reversal of 1550113164 is 4613110551.

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21529314 + ... + 21529385.

It is an arithmetic number, because the mean of its divisors is an integer number (217685650).

Almost surely, 2^1550113164 is an apocalyptic number.

It is an amenable number.

1550113164 is an abundant number, since it is smaller than the sum of its proper divisors (2368228536).

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

1550113164 is a wasteful number, since it uses less digits than its factorization.

1550113164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43058709 (or 43058704 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 1550113164 is about 39371.4765280653. The cubic root of 1550113164 is about 1157.3226908954.

The spelling of 1550113164 in words is "one billion, five hundred fifty million, one hundred thirteen thousand, one hundred sixty-four".