620644115400 has 96 divisors (see below), whose sum is σ = 1941023489760. Its totient is φ = 164040432640.

The previous prime is 620644115389. The next prime is 620644115407. The reversal of 620644115400 is 4511446026.

It is not an unprimeable number, because it can be changed into a prime (620644115407) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4509222 + ... + 4644821.

It is an arithmetic number, because the mean of its divisors is an integer number (20218994685).

Almost surely, 2^620644115400 is an apocalyptic number.

620644115400 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

620644115400 is an abundant number, since it is smaller than the sum of its proper divisors (1320379374360).

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

620644115400 is a wasteful number, since it uses less digits than its factorization.

620644115400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9154175 (or 9154166 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The spelling of 620644115400 in words is "six hundred twenty billion, six hundred forty-four million, one hundred fifteen thousand, four hundred".