620168640000 has 1600 divisors, whose sum is σ = 2634404720640. Its totient is φ = 126074880000.

The previous prime is 620168639983. The next prime is 620168640001. The reversal of 620168640000 is 46861026.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (1600).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620168640001) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 2708159886 + ... + 2708160114.

Almost surely, 2^620168640000 is an apocalyptic number.

620168640000 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 620168640000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1317202360320).

620168640000 is an abundant number, since it is smaller than the sum of its proper divisors (2014236080640).

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

620168640000 is a wasteful number, since it uses less digits than its factorization.

620168640000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321 (or 290 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The spelling of 620168640000 in words is "six hundred twenty billion, one hundred sixty-eight million, six hundred forty thousand".