1451512220020 has 24 divisors (see below), whose sum is σ = 3119063469984. Its totient is φ = 567102448416.

The previous prime is 1451512220017. The next prime is 1451512220027. The reversal of 1451512220020 is 200222151541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1451512220027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 843901594 + ... + 843903313.

It is an arithmetic number, because the mean of its divisors is an integer number (129960977916).

Almost surely, 2^{1451512220020} is an apocalyptic number.

1451512220020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1451512220020 is an abundant number, since it is smaller than the sum of its proper divisors (1667551249964).

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

1451512220020 is a wasteful number, since it uses less digits than its factorization.

1451512220020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1687804959 (or 1687804957 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

Adding to 1451512220020 its reverse (200222151541), we get a palindrome (1651734371561).

The spelling of 1451512220020 in words is "one trillion, four hundred fifty-one billion, five hundred twelve million, two hundred twenty thousand, twenty".