1320557167 has 16 divisors (see below), whose sum is σ = 1410094080. Its totient is φ = 1233806112.

The previous prime is 1320557143. The next prime is 1320557179. The reversal of 1320557167 is 7617550231.

It is a de Polignac number, because none of the positive numbers 2^k-1320557167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320557107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 765568 + ... + 767290.

It is an arithmetic number, because the mean of its divisors is an integer number (88130880).

Almost surely, 2^1320557167 is an apocalyptic number.

1320557167 is a deficient number, since it is larger than the sum of its proper divisors (89536913).

1320557167 is a wasteful number, since it uses less digits than its factorization.

1320557167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2502.

The product of its (nonzero) digits is 44100, while the sum is 37.

The square root of 1320557167 is about 36339.4711986842. The cubic root of 1320557167 is about 1097.1156298474.

The spelling of 1320557167 in words is "one billion, three hundred twenty million, five hundred fifty-seven thousand, one hundred sixty-seven".