166074238527 has 8 divisors (see below), whose sum is σ = 221573274240. Its totient is φ = 110645680920.

The previous prime is 166074238523. The next prime is 166074238567. The reversal of 166074238527 is 725832470661.

It is a happy number.

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

It is not a de Polignac number, because 166074238527 - 2² = 166074238523 is a prime.

It is a super-2 number, since 2×166074238527² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 166074238527.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166074238523) 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, 17614027 + ... + 17623452.

It is an arithmetic number, because the mean of its divisors is an integer number (27696659280).

Almost surely, 2^166074238527 is an apocalyptic number.

166074238527 is a deficient number, since it is larger than the sum of its proper divisors (55499035713).

166074238527 is a wasteful number, since it uses less digits than its factorization.

166074238527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35239053.

The product of its (nonzero) digits is 3386880, while the sum is 51.

The spelling of 166074238527 in words is "one hundred sixty-six billion, seventy-four million, two hundred thirty-eight thousand, five hundred twenty-seven".