450643244455557 has 64 divisors (see below), whose sum is σ = 672590034432000. Its totient is φ = 298199380377600.

The previous prime is 450643244455519. The next prime is 450643244455567. The reversal of 450643244455557 is 755554442346054.

450643244455557 is a `hidden beast` number, since 4 + 5 + 0 + 6 + 4 + 3 + 24 + 4 + 4 + 55 + 557 = 666.

It is not a de Polignac number, because 450643244455557 - 2⁸ = 450643244455301 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 450643244455494 and 450643244455503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450643244455567) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10556404069 + ... + 10556446757.

It is an arithmetic number, because the mean of its divisors is an integer number (10509219288000).

Almost surely, 2^{450643244455557} is an apocalyptic number.

It is an amenable number.

450643244455557 is a deficient number, since it is larger than the sum of its proper divisors (221946789976443).

450643244455557 is a wasteful number, since it uses less digits than its factorization.

450643244455557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47339 (or 47333 counting only the distinct ones).

The product of its (nonzero) digits is 806400000, while the sum is 63.

The spelling of 450643244455557 in words is "four hundred fifty trillion, six hundred forty-three billion, two hundred forty-four million, four hundred fifty-five thousand, five hundred fifty-seven".