620663533355 has 16 divisors (see below), whose sum is σ = 746953409280. Its totient is φ = 495093658752.

The previous prime is 620663533313. The next prime is 620663533429. The reversal of 620663533355 is 553335366026.

620663533355 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 620663533355 - 2⁶ = 620663533291 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5339717 + ... + 5454713.

It is an arithmetic number, because the mean of its divisors is an integer number (46684588080).

Almost surely, 2^620663533355 is an apocalyptic number.

620663533355 is a deficient number, since it is larger than the sum of its proper divisors (126289875925).

620663533355 is a wasteful number, since it uses less digits than its factorization.

620663533355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118118.

The product of its (nonzero) digits is 4374000, while the sum is 47.

The spelling of 620663533355 in words is "six hundred twenty billion, six hundred sixty-three million, five hundred thirty-three thousand, three hundred fifty-five".