166537888735662 has 48 divisors (see below), whose sum is σ = 365001270643152. Its totient is φ = 54874515271680.

The previous prime is 166537888735643. The next prime is 166537888735663. The reversal of 166537888735662 is 266537888735661.

166537888735662 is a `hidden beast` number, since 1 + 6 + 6 + 53 + 7 + 88 + 87 + 356 + 62 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166537888735663) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 136800133 + ... + 138012144.

It is an arithmetic number, because the mean of its divisors is an integer number (7604193138399).

Almost surely, 2^{166537888735662} is an apocalyptic number.

166537888735662 is an abundant number, since it is smaller than the sum of its proper divisors (198463381907490).

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

166537888735662 is a wasteful number, since it uses less digits than its factorization.

166537888735662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274812673 (or 274812670 counting only the distinct ones).

The product of its digits is 14631321600, while the sum is 81.

Subtracting 166537888735662 from its reverse (266537888735661), we obtain a palindrome (99999999999999).

The spelling of 166537888735662 in words is "one hundred sixty-six trillion, five hundred thirty-seven billion, eight hundred eighty-eight million, seven hundred thirty-five thousand, six hundred sixty-two".