450655336673840 has 20 divisors (see below), whose sum is σ = 1047773657766864. Its totient is φ = 180262134669504.

The previous prime is 450655336673807. The next prime is 450655336673849. The reversal of 450655336673840 is 48376633556054.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×450655336673840² (a number of 30 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (65) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (450655336673849) 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, 2816595854132 + ... + 2816595854291.

Almost surely, 2^{450655336673840} is an apocalyptic number.

450655336673840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

450655336673840 is an abundant number, since it is smaller than the sum of its proper divisors (597118321093024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

450655336673840 is a wasteful number, since it uses less digits than its factorization.

450655336673840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5633191708436 (or 5633191708430 counting only the distinct ones).

The product of its (nonzero) digits is 653184000, while the sum is 65.

The spelling of 450655336673840 in words is "four hundred fifty trillion, six hundred fifty-five billion, three hundred thirty-six million, six hundred seventy-three thousand, eight hundred forty".