201421660524241 has 8 divisors (see below), whose sum is σ = 202871078500160. Its totient is φ = 199972247424048.

The previous prime is 201421660524193. The next prime is 201421660524257. The reversal of 201421660524241 is 142425066124102.

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 201421660524241 - 2¹⁷ = 201421660393169 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201421660524194 and 201421660524203.

It is not an unprimeable number, because it can be changed into a prime (201421660524641) 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, 142143475 + ... + 143553511.

It is an arithmetic number, because the mean of its divisors is an integer number (25358884812520).

Almost surely, 2^{201421660524241} is an apocalyptic number.

It is an amenable number.

201421660524241 is a deficient number, since it is larger than the sum of its proper divisors (1449417975919).

201421660524241 is a wasteful number, since it uses less digits than its factorization.

201421660524241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2437863.

The product of its (nonzero) digits is 184320, while the sum is 40.

The spelling of 201421660524241 in words is "two hundred one trillion, four hundred twenty-one billion, six hundred sixty million, five hundred twenty-four thousand, two hundred forty-one".