660146434163500 has 96 divisors (see below), whose sum is σ = 1518185731345920. Its totient is φ = 250071112728000.

The previous prime is 660146434163441. The next prime is 660146434163507. The reversal of 660146434163500 is 5361434641066.

It is not an unprimeable number, because it can be changed into a prime (660146434163507) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14065719 + ... + 38963281.

It is an arithmetic number, because the mean of its divisors is an integer number (15814434701520).

Almost surely, 2^{660146434163500} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 660146434163500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (759092865672960).

660146434163500 is an abundant number, since it is smaller than the sum of its proper divisors (858039297182420).

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

660146434163500 is a wasteful number, since it uses less digits than its factorization.

660146434163500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24900392 (or 24900380 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 49.

The spelling of 660146434163500 in words is "six hundred sixty trillion, one hundred forty-six billion, four hundred thirty-four million, one hundred sixty-three thousand, five hundred".