620566662 has 16 divisors (see below), whose sum is σ = 1267540992. Its totient is φ = 202454280.

The previous prime is 620566637. The next prime is 620566699. The reversal of 620566662 is 266665026.

It is a self number, because there is not a number n which added to its sum of digits gives 620566662.

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, 1100014 + ... + 1100577.

It is an arithmetic number, because the mean of its divisors is an integer number (79221312).

Almost surely, 2^620566662 is an apocalyptic number.

620566662 is an abundant number, since it is smaller than the sum of its proper divisors (646974330).

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

620566662 is a wasteful number, since it uses less digits than its factorization.

620566662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2200643.

The product of its (nonzero) digits is 155520, while the sum is 39.

The square root of 620566662 is about 24911.1754439649. The cubic root of 620566662 is about 852.9616008171.

The spelling of 620566662 in words is "six hundred twenty million, five hundred sixty-six thousand, six hundred sixty-two".