1520504545512 has 16 divisors (see below), whose sum is σ = 3801261363840. Its totient is φ = 506834848496.

The previous prime is 1520504545507. The next prime is 1520504545517. The reversal of 1520504545512 is 2155454050251.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1520504545507) and next prime (1520504545517).

It is not an unprimeable number, because it can be changed into a prime (1520504545517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31677178008 + ... + 31677178055.

It is an arithmetic number, because the mean of its divisors is an integer number (237578835240).

Almost surely, 2^{1520504545512} is an apocalyptic number.

1520504545512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1520504545512 is an abundant number, since it is smaller than the sum of its proper divisors (2280756818328).

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

1520504545512 is a wasteful number, since it uses less digits than its factorization.

1520504545512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63354356072 (or 63354356068 counting only the distinct ones).

The product of its (nonzero) digits is 200000, while the sum is 39.

Adding to 1520504545512 its reverse (2155454050251), we get a palindrome (3675958595763).

The spelling of 1520504545512 in words is "one trillion, five hundred twenty billion, five hundred four million, five hundred forty-five thousand, five hundred twelve".