116067521657 has 4 divisors (see below), whose sum is σ = 120069850020. Its totient is φ = 112065193296.

The previous prime is 116067521593. The next prime is 116067521671. The reversal of 116067521657 is 756125760611.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 81147498496 + 34920023161 = 284864^2 + 186869^2 .

It is a cyclic number.

It is not a de Polignac number, because 116067521657 - 2⁶ = 116067521593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116067523657) 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, 2001164138 + ... + 2001164195.

It is an arithmetic number, because the mean of its divisors is an integer number (30017462505).

Almost surely, 2^116067521657 is an apocalyptic number.

It is an amenable number.

116067521657 is a deficient number, since it is larger than the sum of its proper divisors (4002328363).

116067521657 is an equidigital number, since it uses as much as digits as its factorization.

116067521657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4002328362.

The product of its (nonzero) digits is 529200, while the sum is 47.

The spelling of 116067521657 in words is "one hundred sixteen billion, sixty-seven million, five hundred twenty-one thousand, six hundred fifty-seven".