2066400468488 has 32 divisors (see below), whose sum is σ = 3918833913600. Its totient is φ = 1021382828928.

The previous prime is 2066400468463. The next prime is 2066400468497. The reversal of 2066400468488 is 8848640046602.

It is a super-2 number, since 2×2066400468488² (a number of 25 digits) contains 22 as substring.

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, 3225845 + ... + 3812987.

It is an arithmetic number, because the mean of its divisors is an integer number (122463559800).

Almost surely, 2^{2066400468488} is an apocalyptic number.

It is an amenable number.

2066400468488 is a deficient number, since it is larger than the sum of its proper divisors (1852433445112).

2066400468488 is a wasteful number, since it uses less digits than its factorization.

2066400468488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592181 (or 592177 counting only the distinct ones).

The product of its (nonzero) digits is 14155776, while the sum is 56.

The spelling of 2066400468488 in words is "two trillion, sixty-six billion, four hundred million, four hundred sixty-eight thousand, four hundred eighty-eight".