421116416221535 has 8 divisors (see below), whose sum is σ = 505591990890480. Its totient is φ = 336724938694144.

The previous prime is 421116416221507. The next prime is 421116416221537. The reversal of 421116416221535 is 535122614611124.

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 421116416221535 - 2⁸ = 421116416221279 is a prime.

It is a super-2 number, since 2×421116416221535² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421116416221537) 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, 21024274370 + ... + 21024294399.

It is an arithmetic number, because the mean of its divisors is an integer number (63198998861310).

Almost surely, 2^{421116416221535} is an apocalyptic number.

421116416221535 is a deficient number, since it is larger than the sum of its proper divisors (84475574668945).

421116416221535 is a wasteful number, since it uses less digits than its factorization.

421116416221535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42048570777.

The product of its digits is 345600, while the sum is 44.

The spelling of 421116416221535 in words is "four hundred twenty-one trillion, one hundred sixteen billion, four hundred sixteen million, two hundred twenty-one thousand, five hundred thirty-five".