83316307705778 has 12 divisors (see below), whose sum is σ = 145378455282702. Its totient is φ = 35706989016720.

The previous prime is 83316307705777. The next prime is 83316307705801. The reversal of 83316307705778 is 87750770361338.

It can be written as a sum of positive squares in only one way, i.e., 69252405170809 + 14063902534969 = 8321803^2 + 3750187^2 .

It is not an unprimeable number, because it can be changed into a prime (83316307705777) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 425083202483 + ... + 425083202678.

Almost surely, 2^{83316307705778} is an apocalyptic number.

83316307705778 is a deficient number, since it is larger than the sum of its proper divisors (62062147576924).

83316307705778 is a wasteful number, since it uses less digits than its factorization.

83316307705778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850166405177 (or 850166405170 counting only the distinct ones).

The product of its (nonzero) digits is 124467840, while the sum is 65.

The spelling of 83316307705778 in words is "eighty-three trillion, three hundred sixteen billion, three hundred seven million, seven hundred five thousand, seven hundred seventy-eight".