620030172123355 has 16 divisors (see below), whose sum is σ = 855025032947904. Its totient is φ = 422814576723840.

The previous prime is 620030172123311. The next prime is 620030172123367. The reversal of 620030172123355 is 553321271030026.

It is a happy number.

It is not a de Polignac number, because 620030172123355 - 2⁹ = 620030172122843 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48936865972 + ... + 48936878641.

It is an arithmetic number, because the mean of its divisors is an integer number (53439064559244).

Almost surely, 2^{620030172123355} is an apocalyptic number.

620030172123355 is a deficient number, since it is larger than the sum of its proper divisors (234994860824549).

620030172123355 is a wasteful number, since it uses less digits than its factorization.

620030172123355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97873744806.

The product of its (nonzero) digits is 226800, while the sum is 40.

The spelling of 620030172123355 in words is "six hundred twenty trillion, thirty billion, one hundred seventy-two million, one hundred twenty-three thousand, three hundred fifty-five".