620808214464 has 70 divisors (see below), whose sum is σ = 1840270044624. Its totient is φ = 206936069760.

The previous prime is 620808214427. The next prime is 620808214483. The reversal of 620808214464 is 464412808026.

620808214464 is a `hidden beast` number, since 6 + 20 + 80 + 82 + 14 + 464 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 59872152 + ... + 59882519.

Almost surely, 2^620808214464 is an apocalyptic number.

620808214464 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

620808214464 is an abundant number, since it is smaller than the sum of its proper divisors (1219461830160).

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

620808214464 is a wasteful number, since it uses less digits than its factorization.

620808214464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119754695 (or 119754676 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 45.

The spelling of 620808214464 in words is "six hundred twenty billion, eight hundred eight million, two hundred fourteen thousand, four hundred sixty-four".