620154146560 has 576 divisors, whose sum is σ = 1754319676032. Its totient is φ = 207920037888.

The previous prime is 620154146501. The next prime is 620154146561. The reversal of 620154146560 is 65641451026.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620154146561) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2020045927 + ... + 2020046233.

It is an arithmetic number, because the mean of its divisors is an integer number (3045693882).

Almost surely, 2^620154146560 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 620154146560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (877159838016).

620154146560 is an abundant number, since it is smaller than the sum of its proper divisors (1134165529472).

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

620154146560 is a wasteful number, since it uses less digits than its factorization.

620154146560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588 (or 574 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 40.

Adding to 620154146560 its reverse (65641451026), we get a palindrome (685795597586).

The spelling of 620154146560 in words is "six hundred twenty billion, one hundred fifty-four million, one hundred forty-six thousand, five hundred sixty".