1578663018680 has 64 divisors (see below), whose sum is σ = 3880624502880. Its totient is φ = 573211225600.

The previous prime is 1578663018649. The next prime is 1578663018689. The reversal of 1578663018680 is 868103668751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1578663018689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2351951 + ... + 2947710.

Almost surely, 2^{1578663018680} is an apocalyptic number.

1578663018680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1578663018680 is an abundant number, since it is smaller than the sum of its proper divisors (2301961484200).

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

1578663018680 is a wasteful number, since it uses less digits than its factorization.

1578663018680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5300360 (or 5300356 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 59.

The spelling of 1578663018680 in words is "one trillion, five hundred seventy-eight billion, six hundred sixty-three million, eighteen thousand, six hundred eighty".