166374998 has 16 divisors (see below), whose sum is σ = 258247440. Its totient is φ = 80336256.

The previous prime is 166374997. The next prime is 166375021. The reversal of 166374998 is 899473661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166374997) 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, 3215 + ... + 18522.

It is an arithmetic number, because the mean of its divisors is an integer number (16140465).

Almost surely, 2^166374998 is an apocalyptic number.

166374998 is a deficient number, since it is larger than the sum of its proper divisors (91872442).

166374998 is a wasteful number, since it uses less digits than its factorization.

166374998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21871.

The product of its digits is 1959552, while the sum is 53.

The square root of 166374998 is about 12898.6432619869. The cubic root of 166374998 is about 549.9999977961. Note that the first 5 decimals are identical.

The spelling of 166374998 in words is "one hundred sixty-six million, three hundred seventy-four thousand, nine hundred ninety-eight".