455021321641 has 4 divisors (see below), whose sum is σ = 455073019792. Its totient is φ = 454969623492.

The previous prime is 455021321563. The next prime is 455021321663. The reversal of 455021321641 is 146123120554.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-455021321641 is a prime.

It is a super-3 number, since 3×455021321641³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 455021321597 and 455021321606.

It is not an unprimeable number, because it can be changed into a prime (455021321141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25835871 + ... + 25853476.

It is an arithmetic number, because the mean of its divisors is an integer number (113768254948).

Almost surely, 2^455021321641 is an apocalyptic number.

It is an amenable number.

455021321641 is a deficient number, since it is larger than the sum of its proper divisors (51698151).

455021321641 is an equidigital number, since it uses as much as digits as its factorization.

455021321641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51698150.

The product of its (nonzero) digits is 28800, while the sum is 34.

The spelling of 455021321641 in words is "four hundred fifty-five billion, twenty-one million, three hundred twenty-one thousand, six hundred forty-one".