166151754527 has 16 divisors (see below), whose sum is σ = 187212072960. Its totient is φ = 146089696800.

The previous prime is 166151754487. The next prime is 166151754539. The reversal of 166151754527 is 725457151661.

It is a cyclic number.

It is not a de Polignac number, because 166151754527 - 2¹⁴ = 166151738143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166151754127) 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, 450374 + ... + 731532.

It is an arithmetic number, because the mean of its divisors is an integer number (11700754560).

Almost surely, 2^166151754527 is an apocalyptic number.

166151754527 is a deficient number, since it is larger than the sum of its proper divisors (21060318433).

166151754527 is a wasteful number, since it uses less digits than its factorization.

166151754527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282934.

The product of its digits is 1764000, while the sum is 50.

The spelling of 166151754527 in words is "one hundred sixty-six billion, one hundred fifty-one million, seven hundred fifty-four thousand, five hundred twenty-seven".