121616601650711 has 4 divisors (see below), whose sum is σ = 125539717833024. Its totient is φ = 117693485468400.

The previous prime is 121616601650683. The next prime is 121616601650723. The reversal of 121616601650711 is 117056106616121.

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

It is a cyclic number.

It is not a de Polignac number, because 121616601650711 - 2⁶ = 121616601650647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121616601659711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1961558091110 + ... + 1961558091171.

It is an arithmetic number, because the mean of its divisors is an integer number (31384929458256).

Almost surely, 2^{121616601650711} is an apocalyptic number.

121616601650711 is a deficient number, since it is larger than the sum of its proper divisors (3923116182313).

121616601650711 is an equidigital number, since it uses as much as digits as its factorization.

121616601650711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3923116182312.

The product of its (nonzero) digits is 90720, while the sum is 44.

The spelling of 121616601650711 in words is "one hundred twenty-one trillion, six hundred sixteen billion, six hundred one million, six hundred fifty thousand, seven hundred eleven".