21607435216141 has 8 divisors (see below), whose sum is σ = 21918222990720. Its totient is φ = 21297579340128.

The previous prime is 21607435216123. The next prime is 21607435216153. The reversal of 21607435216141 is 14161253470612.

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

It is a cyclic number.

It is not a de Polignac number, because 21607435216141 - 2⁹ = 21607435215629 is a prime.

It is a super-3 number, since 3×21607435216141³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21607435216111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232927936 + ... + 233020681.

It is an arithmetic number, because the mean of its divisors is an integer number (2739777873840).

Almost surely, 2^{21607435216141} is an apocalyptic number.

It is an amenable number.

21607435216141 is a deficient number, since it is larger than the sum of its proper divisors (310787774579).

21607435216141 is an equidigital number, since it uses as much as digits as its factorization.

21607435216141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465949283.

The product of its (nonzero) digits is 241920, while the sum is 43.

Adding to 21607435216141 its reverse (14161253470612), we get a palindrome (35768688686753).

The spelling of 21607435216141 in words is "twenty-one trillion, six hundred seven billion, four hundred thirty-five million, two hundred sixteen thousand, one hundred forty-one".