1520060660 has 24 divisors (see below), whose sum is σ = 3246233760. Its totient is φ = 597718304.

The previous prime is 1520060651. The next prime is 1520060671. The reversal of 1520060660 is 660600251.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 642914 + ... + 645273.

It is an arithmetic number, because the mean of its divisors is an integer number (135259740).

Almost surely, 2^1520060660 is an apocalyptic number.

1520060660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1520060660 is an abundant number, since it is smaller than the sum of its proper divisors (1726173100).

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

1520060660 is a wasteful number, since it uses less digits than its factorization.

1520060660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1288255 (or 1288253 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 1520060660 is about 38987.9553195599. The cubic root of 1520060660 is about 1149.7947106775.

The spelling of 1520060660 in words is "one billion, five hundred twenty million, sixty thousand, six hundred sixty".