1578060660 has 48 divisors (see below), whose sum is σ = 4820260032. Its totient is φ = 382560000.

The previous prime is 1578060641. The next prime is 1578060703. The reversal of 1578060660 is 660608751.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1194841 + ... + 1196160.

It is an arithmetic number, because the mean of its divisors is an integer number (100422084).

Almost surely, 2^1578060660 is an apocalyptic number.

1578060660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1578060660 is an abundant number, since it is smaller than the sum of its proper divisors (3242199372).

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

1578060660 is a wasteful number, since it uses less digits than its factorization.

1578060660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2391024 (or 2391022 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 1578060660 is about 39724.8116420959. The cubic root of 1578060660 is about 1164.2365545846.

The spelling of 1578060660 in words is "one billion, five hundred seventy-eight million, sixty thousand, six hundred sixty".