1520579016 has 96 divisors (see below), whose sum is σ = 4637617920. Its totient is φ = 445910400.

The previous prime is 1520578993. The next prime is 1520579023. The reversal of 1520579016 is 6109750251.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6415 + ... + 55518.

It is an arithmetic number, because the mean of its divisors is an integer number (48308520).

Almost surely, 2^1520579016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1520579016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2318808960).

1520579016 is an abundant number, since it is smaller than the sum of its proper divisors (3117038904).

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

1520579016 is a wasteful number, since it uses less digits than its factorization.

1520579016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61987 (or 61980 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 36.

The square root of 1520579016 is about 38994.6023957163. The cubic root of 1520579016 is about 1149.9253930175.

The spelling of 1520579016 in words is "one billion, five hundred twenty million, five hundred seventy-nine thousand, sixteen".