662847118177020 has 384 divisors, whose sum is σ = 2243726172979200. Its totient is φ = 142941794688000.

The previous prime is 662847118177007. The next prime is 662847118177063. The reversal of 662847118177020 is 20771811748266.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 248412906 + ... + 251067054.

It is an arithmetic number, because the mean of its divisors is an integer number (5843036908800).

Almost surely, 2^{662847118177020} is an apocalyptic number.

662847118177020 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 662847118177020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1121863086489600).

662847118177020 is an abundant number, since it is smaller than the sum of its proper divisors (1580879054802180).

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

662847118177020 is a wasteful number, since it uses less digits than its factorization.

662847118177020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2654545 (or 2654543 counting only the distinct ones).

The product of its (nonzero) digits is 12644352, while the sum is 60.

The spelling of 662847118177020 in words is "six hundred sixty-two trillion, eight hundred forty-seven billion, one hundred eighteen million, one hundred seventy-seven thousand, twenty".