66305167702 has 4 divisors (see below), whose sum is σ = 99457751556. Its totient is φ = 33152583850.

The previous prime is 66305167661. The next prime is 66305167727. The reversal of 66305167702 is 20776150366.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20776150366 = 2 ⋅10388075183.

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, 16576291924 + ... + 16576291927.

It is an arithmetic number, because the mean of its divisors is an integer number (24864437889).

Almost surely, 2^66305167702 is an apocalyptic number.

66305167702 is a deficient number, since it is larger than the sum of its proper divisors (33152583854).

66305167702 is a wasteful number, since it uses less digits than its factorization.

66305167702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33152583853.

The product of its (nonzero) digits is 317520, while the sum is 43.

The spelling of 66305167702 in words is "sixty-six billion, three hundred five million, one hundred sixty-seven thousand, seven hundred two".