160766775521 has 8 divisors (see below), whose sum is σ = 175455072000. Its totient is φ = 146090668240.

The previous prime is 160766775517. The next prime is 160766775523. The reversal of 160766775521 is 125577667061.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 160766775521 - 2² = 160766775517 is a prime.

It is a super-2 number, since 2×160766775521² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (160766775523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3019706 + ... + 3072483.

It is an arithmetic number, because the mean of its divisors is an integer number (21931884000).

Almost surely, 2^160766775521 is an apocalyptic number.

160766775521 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

160766775521 is a deficient number, since it is larger than the sum of its proper divisors (14688296479).

160766775521 is a wasteful number, since it uses less digits than its factorization.

160766775521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6094599.

The product of its (nonzero) digits is 3704400, while the sum is 53.

The spelling of 160766775521 in words is "one hundred sixty billion, seven hundred sixty-six million, seven hundred seventy-five thousand, five hundred twenty-one".