620641453266 has 48 divisors (see below), whose sum is σ = 1346437336608. Its totient is φ = 206616912000.

The previous prime is 620641453259. The next prime is 620641453297. The reversal of 620641453266 is 662354146026.

It is a happy number.

620641453266 is a `hidden beast` number, since 6 + 206 + 414 + 5 + 3 + 26 + 6 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 99188410 + ... + 99194666.

It is an arithmetic number, because the mean of its divisors is an integer number (28050777846).

Almost surely, 2^620641453266 is an apocalyptic number.

620641453266 is an abundant number, since it is smaller than the sum of its proper divisors (725795883342).

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

620641453266 is a wasteful number, since it uses less digits than its factorization.

620641453266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12407 (or 12404 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 45.

The spelling of 620641453266 in words is "six hundred twenty billion, six hundred forty-one million, four hundred fifty-three thousand, two hundred sixty-six".