213016660420 has 48 divisors (see below), whose sum is σ = 470927016000. Its totient is φ = 80713860480.

The previous prime is 213016660397. The next prime is 213016660427. The reversal of 213016660420 is 24066610312.

It is not an unprimeable number, because it can be changed into a prime (213016660427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4743231 + ... + 4787929.

It is an arithmetic number, because the mean of its divisors is an integer number (9810979500).

Almost surely, 2^213016660420 is an apocalyptic number.

213016660420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213016660420 is an abundant number, since it is smaller than the sum of its proper divisors (257910355580).

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

213016660420 is a wasteful number, since it uses less digits than its factorization.

213016660420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57268 (or 57266 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The spelling of 213016660420 in words is "two hundred thirteen billion, sixteen million, six hundred sixty thousand, four hundred twenty".