21213554610162 has 8 divisors (see below), whose sum is σ = 42427109220336. Its totient is φ = 7071184870052.

The previous prime is 21213554610091. The next prime is 21213554610323. The reversal of 21213554610162 is 26101645531212.

It is a sphenic number, since it is the product of 3 distinct primes.

21213554610162 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 21213554610162.

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 3 ways as a sum of consecutive naturals, for example, 1767796217508 + ... + 1767796217519.

It is an arithmetic number, because the mean of its divisors is an integer number (5303388652542).

Almost surely, 2^{21213554610162} is an apocalyptic number.

21213554610162 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21213554610162 is a wasteful number, since it uses less digits than its factorization.

21213554610162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3535592435032.

The product of its (nonzero) digits is 86400, while the sum is 39.

The spelling of 21213554610162 in words is "twenty-one trillion, two hundred thirteen billion, five hundred fifty-four million, six hundred ten thousand, one hundred sixty-two".