660105157000 has 128 divisors (see below), whose sum is σ = 1573222435200. Its totient is φ = 259170912000.

The previous prime is 660105156983. The next prime is 660105157027. The reversal of 660105157000 is 751501066.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40288810 + ... + 40305190.

It is an arithmetic number, because the mean of its divisors is an integer number (12290800275).

Almost surely, 2^660105157000 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 660105157000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (786611217600).

660105157000 is an abundant number, since it is smaller than the sum of its proper divisors (913117278200).

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

660105157000 is a wasteful number, since it uses less digits than its factorization.

660105157000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17144 (or 17130 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 31.

Adding to 660105157000 its reverse (751501066), we get a palindrome (660856658066).

The spelling of 660105157000 in words is "six hundred sixty billion, one hundred five million, one hundred fifty-seven thousand".