11455255404421 has 8 divisors (see below), whose sum is σ = 11850454791000. Its totient is φ = 11060068723200.

The previous prime is 11455255404407. The next prime is 11455255404443. The reversal of 11455255404421 is 12440455255411.

It can be written as a sum of positive squares in 4 ways, for example, as 3048144100 + 11452207260321 = 55210^2 + 3384111^2 .

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 11455255404421 - 2¹¹ = 11455255402373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11455255494421) 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, 1323696 + ... + 4966153.

It is an arithmetic number, because the mean of its divisors is an integer number (1481306848875).

Almost surely, 2^{11455255404421} is an apocalyptic number.

It is an amenable number.

11455255404421 is a deficient number, since it is larger than the sum of its proper divisors (395199386579).

11455255404421 is an equidigital number, since it uses as much as digits as its factorization.

11455255404421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6352679.

The product of its (nonzero) digits is 640000, while the sum is 43.

The spelling of 11455255404421 in words is "eleven trillion, four hundred fifty-five billion, two hundred fifty-five million, four hundred four thousand, four hundred twenty-one".