620165055 has 8 divisors (see below), whose sum is σ = 992264112. Its totient is φ = 330754688.

The previous prime is 620165009. The next prime is 620165069. The reversal of 620165055 is 550561026.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 620165055 - 2⁷ = 620164927 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20672154 + ... + 20672183.

It is an arithmetic number, because the mean of its divisors is an integer number (124033014).

Almost surely, 2^620165055 is an apocalyptic number.

620165055 is a deficient number, since it is larger than the sum of its proper divisors (372099057).

620165055 is a wasteful number, since it uses less digits than its factorization.

620165055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41344345.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 620165055 is about 24903.1133595782. The cubic root of 620165055 is about 852.7775597391. Note that the first 3 decimals are identical.

The spelling of 620165055 in words is "six hundred twenty million, one hundred sixty-five thousand, fifty-five".