1520345014443 has 16 divisors (see below), whose sum is σ = 2304743520640. Its totient is φ = 989992101672.

The previous prime is 1520345014393. The next prime is 1520345014459. The reversal of 1520345014443 is 3444105430251.

1520345014443 is a `hidden beast` number, since 1 + 5 + 20 + 3 + 450 + 144 + 43 = 666.

It is not a de Polignac number, because 1520345014443 - 2¹⁴ = 1520344998059 is a prime.

It is a super-2 number, since 2×1520345014443² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1520345014398 and 1520345014407.

It is not an unprimeable number, because it can be changed into a prime (1520345012443) 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, 654755521 + ... + 654757842.

It is an arithmetic number, because the mean of its divisors is an integer number (144046470040).

Almost surely, 2^{1520345014443} is an apocalyptic number.

1520345014443 is a deficient number, since it is larger than the sum of its proper divisors (784398506197).

1520345014443 is a wasteful number, since it uses less digits than its factorization.

1520345014443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1309513415 (or 1309513409 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

The spelling of 1520345014443 in words is "one trillion, five hundred twenty billion, three hundred forty-five million, fourteen thousand, four hundred forty-three".