1520616722116 has 12 divisors (see below), whose sum is σ = 2665105106860. Its totient is φ = 759158120160.

The previous prime is 1520616722099. The next prime is 1520616722129. The reversal of 1520616722116 is 6112276160251.

It can be written as a sum of positive squares in 2 ways, for example, as 1054018435716 + 466598286400 = 1026654^2 + 683080^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 287557251 + ... + 287562538.

Almost surely, 2^{1520616722116} is an apocalyptic number.

It is an amenable number.

1520616722116 is a deficient number, since it is larger than the sum of its proper divisors (1144488384744).

1520616722116 is a wasteful number, since it uses less digits than its factorization.

1520616722116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575120454 (or 575120452 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 40.

The spelling of 1520616722116 in words is "one trillion, five hundred twenty billion, six hundred sixteen million, seven hundred twenty-two thousand, one hundred sixteen".