2066906354870 has 64 divisors (see below), whose sum is σ = 4437444695040. Its totient is φ = 677742223488.

The previous prime is 2066906354861. The next prime is 2066906354897. The reversal of 2066906354870 is 784536096602.

It is a happy number.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11199401 + ... + 11382459.

It is an arithmetic number, because the mean of its divisors is an integer number (69335073360).

Almost surely, 2^{2066906354870} is an apocalyptic number.

2066906354870 is an abundant number, since it is smaller than the sum of its proper divisors (2370538340170).

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

2066906354870 is a wasteful number, since it uses less digits than its factorization.

2066906354870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190109.

The product of its (nonzero) digits is 13063680, while the sum is 56.

The spelling of 2066906354870 in words is "two trillion, sixty-six billion, nine hundred six million, three hundred fifty-four thousand, eight hundred seventy".