662989308156 has 216 divisors, whose sum is σ = 2130770468736. Its totient is φ = 172531537920.

The previous prime is 662989308133. The next prime is 662989308169. The reversal of 662989308156 is 651803989266.

662989308156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 662989308093 and 662989308102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 573040 + ... + 1286216.

It is an arithmetic number, because the mean of its divisors is an integer number (9864678096).

Almost surely, 2^662989308156 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 662989308156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1065385234368).

662989308156 is an abundant number, since it is smaller than the sum of its proper divisors (1467781160580).

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

662989308156 is a wasteful number, since it uses less digits than its factorization.

662989308156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713249 (or 713237 counting only the distinct ones).

The product of its (nonzero) digits is 33592320, while the sum is 63.

The spelling of 662989308156 in words is "six hundred sixty-two billion, nine hundred eighty-nine million, three hundred eight thousand, one hundred fifty-six".