166742446467 has 8 divisors (see below), whose sum is σ = 222355477696. Its totient is φ = 111145523112.

The previous prime is 166742446439. The next prime is 166742446511. The reversal of 166742446467 is 764644247661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 166742446467 - 2¹¹ = 166742444419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166742446067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4002793 + ... + 4044234.

It is an arithmetic number, because the mean of its divisors is an integer number (27794434712).

Almost surely, 2^166742446467 is an apocalyptic number.

166742446467 is a deficient number, since it is larger than the sum of its proper divisors (55613031229).

166742446467 is an equidigital number, since it uses as much as digits as its factorization.

166742446467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8053937.

The product of its digits is 32514048, while the sum is 57.

The spelling of 166742446467 in words is "one hundred sixty-six billion, seven hundred forty-two million, four hundred forty-six thousand, four hundred sixty-seven".