1665980582630 has 48 divisors (see below), whose sum is σ = 3711066832224. Its totient is φ = 527255389440.

The previous prime is 1665980582521. The next prime is 1665980582653. The reversal of 1665980582630 is 362850895661.

It is a self number, because there is not a number n which added to its sum of digits gives 1665980582630.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70401551 + ... + 70425210.

It is an arithmetic number, because the mean of its divisors is an integer number (77313892338).

Almost surely, 2^{1665980582630} is an apocalyptic number.

1665980582630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1665980582630 is an abundant number, since it is smaller than the sum of its proper divisors (2045086249594).

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

1665980582630 is a wasteful number, since it uses less digits than its factorization.

1665980582630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140826801 (or 140826788 counting only the distinct ones).

The product of its (nonzero) digits is 18662400, while the sum is 59.

The spelling of 1665980582630 in words is "one trillion, six hundred sixty-five billion, nine hundred eighty million, five hundred eighty-two thousand, six hundred thirty".