216165003536420 has 24 divisors (see below), whose sum is σ = 453950570762304. Its totient is φ = 86465227445856.

The previous prime is 216165003536401. The next prime is 216165003536437. The reversal of 216165003536420 is 24635300561612.

It is a super-2 number, since 2×216165003536420² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46080182 + ... + 50554061.

It is an arithmetic number, because the mean of its divisors is an integer number (18914607115096).

Almost surely, 2^{216165003536420} is an apocalyptic number.

216165003536420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

216165003536420 is an abundant number, since it is smaller than the sum of its proper divisors (237785567225884).

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

216165003536420 is a wasteful number, since it uses less digits than its factorization.

216165003536420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96746099 (or 96746097 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 44.

The spelling of 216165003536420 in words is "two hundred sixteen trillion, one hundred sixty-five billion, three million, five hundred thirty-six thousand, four hundred twenty".