160762991993 has 2 divisors, whose sum is σ = 160762991994. Its totient is φ = 160762991992.

The previous prime is 160762991989. The next prime is 160762991999. The reversal of 160762991993 is 399199267061.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82233018169 + 78529973824 = 286763^2 + 280232^2 .

It is a cyclic number.

It is not a de Polignac number, because 160762991993 - 2² = 160762991989 is a prime.

It is a super-2 number, since 2×160762991993² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (160762991999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80381495996 + 80381495997.

It is an arithmetic number, because the mean of its divisors is an integer number (80381495997).

Almost surely, 2^160762991993 is an apocalyptic number.

It is an amenable number.

160762991993 is a deficient number, since it is larger than the sum of its proper divisors (1).

160762991993 is an equidigital number, since it uses as much as digits as its factorization.

160762991993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9920232, while the sum is 62.

The spelling of 160762991993 in words is "one hundred sixty billion, seven hundred sixty-two million, nine hundred ninety-one thousand, nine hundred ninety-three".