4156604166666 has 16 divisors (see below), whose sum is σ = 9500809523904. Its totient is φ = 1187601190464.

The previous prime is 4156604166607. The next prime is 4156604166719. The reversal of 4156604166666 is 6666614066514.

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, 49483382895 + ... + 49483382978.

It is an arithmetic number, because the mean of its divisors is an integer number (593800595244).

Almost surely, 2^{4156604166666} is an apocalyptic number.

4156604166666 is an abundant number, since it is smaller than the sum of its proper divisors (5344205357238).

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

4156604166666 is a wasteful number, since it uses less digits than its factorization.

4156604166666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98966765885.

The product of its (nonzero) digits is 22394880, while the sum is 57.

It can be divided in two parts, 4156604 and 166666, that added together give a triangular number (4323270 = T₂₉₄₀).

The spelling of 4156604166666 in words is "four trillion, one hundred fifty-six billion, six hundred four million, one hundred sixty-six thousand, six hundred sixty-six".