60775528081 has 8 divisors (see below), whose sum is σ = 61952276520. Its totient is φ = 59599892352.

The previous prime is 60775528031. The next prime is 60775528147. The reversal of 60775528081 is 18082557706.

It can be written as a sum of positive squares in 4 ways, for example, as 6628565056 + 54146963025 = 81416^2 + 232695^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 60775528081 - 2⁹ = 60775527569 is a prime.

It is a super-2 number, since 2×60775528081² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (60775528031) 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, 167460 + ... + 386773.

It is an arithmetic number, because the mean of its divisors is an integer number (7744034565).

Almost surely, 2^60775528081 is an apocalyptic number.

It is an amenable number.

60775528081 is a deficient number, since it is larger than the sum of its proper divisors (1176748439).

60775528081 is a wasteful number, since it uses less digits than its factorization.

60775528081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556355.

The product of its (nonzero) digits is 940800, while the sum is 49.

The spelling of 60775528081 in words is "sixty billion, seven hundred seventy-five million, five hundred twenty-eight thousand, eighty-one".