166106073974 has 32 divisors (see below), whose sum is σ = 267073113600. Its totient is φ = 77245267680.

The previous prime is 166106073971. The next prime is 166106074003. The reversal of 166106073974 is 479370601661.

It is a super-2 number, since 2×166106073974² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166106073971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1648259 + ... + 1746129.

It is an arithmetic number, because the mean of its divisors is an integer number (8346034800).

Almost surely, 2^166106073974 is an apocalyptic number.

166106073974 is a deficient number, since it is larger than the sum of its proper divisors (100967039626).

166106073974 is a wasteful number, since it uses less digits than its factorization.

166106073974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98708.

The product of its (nonzero) digits is 1143072, while the sum is 50.

The spelling of 166106073974 in words is "one hundred sixty-six billion, one hundred six million, seventy-three thousand, nine hundred seventy-four".