166584084280347 has 4 divisors (see below), whose sum is σ = 222112112373800. Its totient is φ = 111056056186896.

The previous prime is 166584084280343. The next prime is 166584084280351. The reversal of 166584084280347 is 743082480485661.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (166584084280343) and next prime (166584084280351).

It is not a de Polignac number, because 166584084280347 - 2² = 166584084280343 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166584084280343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27764014046722 + ... + 27764014046727.

It is an arithmetic number, because the mean of its divisors is an integer number (55528028093450).

Almost surely, 2^{166584084280347} is an apocalyptic number.

166584084280347 is a deficient number, since it is larger than the sum of its proper divisors (55528028093453).

166584084280347 is an equidigital number, since it uses as much as digits as its factorization.

166584084280347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55528028093452.

The product of its (nonzero) digits is 247726080, while the sum is 66.

The spelling of 166584084280347 in words is "one hundred sixty-six trillion, five hundred eighty-four billion, eighty-four million, two hundred eighty thousand, three hundred forty-seven".