160216473649 has 4 divisors (see below), whose sum is σ = 163239426036. Its totient is φ = 157193521264.

The previous prime is 160216473589. The next prime is 160216473653. The reversal of 160216473649 is 946374612061.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 946374612061 = 5273 ⋅179475557.

It can be written as a sum of positive squares in 2 ways, for example, as 105924211600 + 54292262049 = 325460^2 + 233007^2 .

It is a cyclic number.

It is not a de Polignac number, because 160216473649 - 2²⁵ = 160182919217 is a prime.

It is a super-2 number, since 2×160216473649² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (160216473749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1511476114 + ... + 1511476219.

It is an arithmetic number, because the mean of its divisors is an integer number (40809856509).

Almost surely, 2^160216473649 is an apocalyptic number.

It is an amenable number.

160216473649 is a deficient number, since it is larger than the sum of its proper divisors (3022952387).

160216473649 is an equidigital number, since it uses as much as digits as its factorization.

160216473649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3022952386.

The product of its (nonzero) digits is 1306368, while the sum is 49.

The spelling of 160216473649 in words is "one hundred sixty billion, two hundred sixteen million, four hundred seventy-three thousand, six hundred forty-nine".