2106204566456 has 32 divisors (see below), whose sum is σ = 3997256739840. Its totient is φ = 1040272885728.

The previous prime is 2106204566399. The next prime is 2106204566507. The reversal of 2106204566456 is 6546654026012.

It is a self number, because there is not a number n which added to its sum of digits gives 2106204566456.

It is a congruent number.

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, 4759535 + ... + 5183201.

It is an arithmetic number, because the mean of its divisors is an integer number (124914273120).

Almost surely, 2^{2106204566456} is an apocalyptic number.

It is an amenable number.

2106204566456 is a deficient number, since it is larger than the sum of its proper divisors (1891052173384).

2106204566456 is a wasteful number, since it uses less digits than its factorization.

2106204566456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431243 (or 431239 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 47.

The spelling of 2106204566456 in words is "two trillion, one hundred six billion, two hundred four million, five hundred sixty-six thousand, four hundred fifty-six".