450142345450120 has 64 divisors (see below), whose sum is σ = 1015888811586480. Its totient is φ = 179511487389696.

The previous prime is 450142345450073. The next prime is 450142345450121. The reversal of 450142345450120 is 21054543241054.

It can be written as a sum of positive squares in 8 ways, for example, as 78431888767684 + 371710456682436 = 8856178^2 + 19279794^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (450142345450121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217575582 + ... + 219634738.

Almost surely, 2^{450142345450120} is an apocalyptic number.

450142345450120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

450142345450120 is an abundant number, since it is smaller than the sum of its proper divisors (565746466136360).

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

450142345450120 is a wasteful number, since it uses less digits than its factorization.

450142345450120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2075722 (or 2075718 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 40.

Adding to 450142345450120 its reverse (21054543241054), we get a palindrome (471196888691174).

The spelling of 450142345450120 in words is "four hundred fifty trillion, one hundred forty-two billion, three hundred forty-five million, four hundred fifty thousand, one hundred twenty".