21442055010455 has 8 divisors (see below), whose sum is σ = 25730521836000. Its totient is φ = 17153606792736.

The previous prime is 21442055010421. The next prime is 21442055010491. The reversal of 21442055010455 is 55401055024412.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21442055010455 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1977035 + ... + 6840524.

It is an arithmetic number, because the mean of its divisors is an integer number (3216315229500).

Almost surely, 2^{21442055010455} is an apocalyptic number.

21442055010455 is a deficient number, since it is larger than the sum of its proper divisors (4288466825545).

21442055010455 is an equidigital number, since it uses as much as digits as its factorization.

21442055010455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9303913.

The product of its (nonzero) digits is 160000, while the sum is 38.

The spelling of 21442055010455 in words is "twenty-one trillion, four hundred forty-two billion, fifty-five million, ten thousand, four hundred fifty-five".