660060861846100 has 144 divisors (see below), whose sum is σ = 1682758625929920. Its totient is φ = 221556408652800.

The previous prime is 660060861846047. The next prime is 660060861846107. The reversal of 660060861846100 is 1648168060066.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660060861846107) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1640194711 + ... + 1640597089.

It is an arithmetic number, because the mean of its divisors is an integer number (11685823791180).

Almost surely, 2^{660060861846100} is an apocalyptic number.

It is an amenable number.

660060861846100 is an abundant number, since it is smaller than the sum of its proper divisors (1022697764083820).

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

660060861846100 is a wasteful number, since it uses less digits than its factorization.

660060861846100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517130 (or 517123 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 52.

The spelling of 660060861846100 in words is "six hundred sixty trillion, sixty billion, eight hundred sixty-one million, eight hundred forty-six thousand, one hundred".