216341616005420 has 24 divisors (see below), whose sum is σ = 465398305652448. Its totient is φ = 84425996489600.

The previous prime is 216341616005399. The next prime is 216341616005443. The reversal of 216341616005420 is 24500616143612.

It is a Harshad number since it is a multiple of its sum of digits (41).

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, 131915618696 + ... + 131915620335.

It is an arithmetic number, because the mean of its divisors is an integer number (19391596068852).

Almost surely, 2^{216341616005420} is an apocalyptic number.

216341616005420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

216341616005420 is an abundant number, since it is smaller than the sum of its proper divisors (249056689647028).

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

216341616005420 is a wasteful number, since it uses less digits than its factorization.

216341616005420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263831239081 (or 263831239079 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 216341616005420 in words is "two hundred sixteen trillion, three hundred forty-one billion, six hundred sixteen million, five thousand, four hundred twenty".