66328172031036 has 48 divisors (see below), whose sum is σ = 160649747758080. Its totient is φ = 21284240752320.

The previous prime is 66328172031019. The next prime is 66328172031103. The reversal of 66328172031036 is 63013027182366.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 963925776 + ... + 963994583.

It is an arithmetic number, because the mean of its divisors is an integer number (3346869744960).

Almost surely, 2^{66328172031036} is an apocalyptic number.

It is an amenable number.

66328172031036 is an abundant number, since it is smaller than the sum of its proper divisors (94321575727044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66328172031036 is a wasteful number, since it uses less digits than its factorization.

66328172031036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1927920474 (or 1927920472 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 48.

The spelling of 66328172031036 in words is "sixty-six trillion, three hundred twenty-eight billion, one hundred seventy-two million, thirty-one thousand, thirty-six".