166001474574 has 288 divisors, whose sum is σ = 428854292640. Its totient is φ = 47561859072.

The previous prime is 166001474477. The next prime is 166001474579. The reversal of 166001474574 is 475474100661.

166001474574 is a `hidden beast` number, since 1 + 6 + 6 + 0 + 0 + 1 + 4 + 74 + 574 = 666.

166001474574 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166001474579) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 298027504 + ... + 298028060.

It is an arithmetic number, because the mean of its divisors is an integer number (1489077405).

Almost surely, 2^166001474574 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166001474574, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214427146320).

166001474574 is an abundant number, since it is smaller than the sum of its proper divisors (262852818066).

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

166001474574 is a wasteful number, since it uses less digits than its factorization.

166001474574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741 (or 705 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The spelling of 166001474574 in words is "one hundred sixty-six billion, one million, four hundred seventy-four thousand, five hundred seventy-four".