1521150163434 has 96 divisors (see below), whose sum is σ = 3744831928320. Its totient is φ = 457324781760.

The previous prime is 1521150163427. The next prime is 1521150163517. The reversal of 1521150163434 is 4343610511251.

1521150163434 is a `hidden beast` number, since 1 + 5 + 2 + 1 + 15 + 0 + 1 + 634 + 3 + 4 = 666.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 86739 + ... + 1746374.

It is an arithmetic number, because the mean of its divisors is an integer number (39008665920).

Almost surely, 2^{1521150163434} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1521150163434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1872415964160).

1521150163434 is an abundant number, since it is smaller than the sum of its proper divisors (2223681764886).

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

1521150163434 is a wasteful number, since it uses less digits than its factorization.

1521150163434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1833273 (or 1833256 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

Adding to 1521150163434 its reverse (4343610511251), we get a palindrome (5864760674685).

The spelling of 1521150163434 in words is "one trillion, five hundred twenty-one billion, one hundred fifty million, one hundred sixty-three thousand, four hundred thirty-four".