601660566100 has 72 divisors (see below), whose sum is σ = 1426277462400. Its totient is φ = 218481081600.

The previous prime is 601660566079. The next prime is 601660566121. The reversal of 601660566100 is 1665066106.

It is an interprime number because it is at equal distance from previous prime (601660566079) and next prime (601660566121).

It is a self number, because there is not a number n which added to its sum of digits gives 601660566100.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 410536 + ... + 1171264.

It is an arithmetic number, because the mean of its divisors is an integer number (19809409200).

Almost surely, 2^601660566100 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 601660566100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (713138731200).

601660566100 is an abundant number, since it is smaller than the sum of its proper divisors (824616896300).

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

601660566100 is a wasteful number, since it uses less digits than its factorization.

601660566100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761473 (or 761466 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The spelling of 601660566100 in words is "six hundred one billion, six hundred sixty million, five hundred sixty-six thousand, one hundred".