1512720116622 has 128 divisors (see below), whose sum is σ = 3987637355520. Its totient is φ = 419030133120.

The previous prime is 1512720116603. The next prime is 1512720116707. The reversal of 1512720116622 is 2266110272151.

1512720116622 is a `hidden beast` number, since 1 + 5 + 1 + 2 + 7 + 20 + 1 + 1 + 6 + 622 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 155593 + ... + 1746324.

It is an arithmetic number, because the mean of its divisors is an integer number (31153416840).

Almost surely, 2^{1512720116622} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1512720116622, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1993818677760).

1512720116622 is an abundant number, since it is smaller than the sum of its proper divisors (2474917238898).

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

1512720116622 is a wasteful number, since it uses less digits than its factorization.

1512720116622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1902055 (or 1902049 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

Adding to 1512720116622 its reverse (2266110272151), we get a palindrome (3778830388773).

The spelling of 1512720116622 in words is "one trillion, five hundred twelve billion, seven hundred twenty million, one hundred sixteen thousand, six hundred twenty-two".