1520416663346 has 16 divisors (see below), whose sum is σ = 2606553179520. Its totient is φ = 651575988000.

The previous prime is 1520416663309. The next prime is 1520416663349. The reversal of 1520416663346 is 6433666140251.

It is a self number, because there is not a number n which added to its sum of digits gives 1520416663346.

It is not an unprimeable number, because it can be changed into a prime (1520416663349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2291606 + ... + 2879633.

It is an arithmetic number, because the mean of its divisors is an integer number (162909573720).

Almost surely, 2^{1520416663346} is an apocalyptic number.

1520416663346 is a deficient number, since it is larger than the sum of its proper divisors (1086136516174).

1520416663346 is a wasteful number, since it uses less digits than its factorization.

1520416663346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5192249.

The product of its (nonzero) digits is 1866240, while the sum is 47.

The spelling of 1520416663346 in words is "one trillion, five hundred twenty billion, four hundred sixteen million, six hundred sixty-three thousand, three hundred forty-six".