66357033716 has 6 divisors (see below), whose sum is σ = 116124809010. Its totient is φ = 33178516856.

The previous prime is 66357033697. The next prime is 66357033767. The reversal of 66357033716 is 61733075366.

It can be written as a sum of positive squares in only one way, i.e., 56951913316 + 9405120400 = 238646^2 + 96980^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8294629211 + ... + 8294629218.

It is an arithmetic number, because the mean of its divisors is an integer number (19354134835).

Almost surely, 2^66357033716 is an apocalyptic number.

It is an amenable number.

66357033716 is a deficient number, since it is larger than the sum of its proper divisors (49767775294).

66357033716 is a wasteful number, since it uses less digits than its factorization.

66357033716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16589258433 (or 16589258431 counting only the distinct ones).

The product of its (nonzero) digits is 1428840, while the sum is 47.

The spelling of 66357033716 in words is "sixty-six billion, three hundred fifty-seven million, thirty-three thousand, seven hundred sixteen".