662049678720 has 768 divisors, whose sum is σ = 2304613785600. Its totient is φ = 161499267072.

The previous prime is 662049678691. The next prime is 662049678737. The reversal of 662049678720 is 27876940266.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2968832529 + ... + 2968832751.

It is an arithmetic number, because the mean of its divisors is an integer number (3000799200).

Almost surely, 2^662049678720 is an apocalyptic number.

662049678720 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 662049678720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1152306892800).

662049678720 is an abundant number, since it is smaller than the sum of its proper divisors (1642564106880).

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

662049678720 is a wasteful number, since it uses less digits than its factorization.

662049678720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407 (or 372 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 57.

The spelling of 662049678720 in words is "six hundred sixty-two billion, forty-nine million, six hundred seventy-eight thousand, seven hundred twenty".