620566366 has 16 divisors (see below), whose sum is σ = 1081860480. Its totient is φ = 261448920.

The previous prime is 620566363. The next prime is 620566367. The reversal of 620566366 is 663665026.

It is a super-2 number, since 2×620566366² = 770205229220891912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620566363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 374820 + ... + 376471.

It is an arithmetic number, because the mean of its divisors is an integer number (67616280).

Almost surely, 2^620566366 is an apocalyptic number.

620566366 is a deficient number, since it is larger than the sum of its proper divisors (461294114).

620566366 is a wasteful number, since it uses less digits than its factorization.

620566366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751359.

The product of its (nonzero) digits is 233280, while the sum is 40.

The square root of 620566366 is about 24911.1695028555. The cubic root of 620566366 is about 852.9614652009.

The spelling of 620566366 in words is "six hundred twenty million, five hundred sixty-six thousand, three hundred sixty-six".