166131753730 has 16 divisors (see below), whose sum is σ = 308683517184. Its totient is φ = 64309065840.

The previous prime is 166131753707. The next prime is 166131753757. The reversal of 166131753730 is 37357131661.

It is a super-3 number, since 3×166131753730³ (a number of 35 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 267954132 + ... + 267954751.

It is an arithmetic number, because the mean of its divisors is an integer number (19292719824).

Almost surely, 2^166131753730 is an apocalyptic number.

166131753730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166131753730 is a deficient number, since it is larger than the sum of its proper divisors (142551763454).

166131753730 is a wasteful number, since it uses less digits than its factorization.

166131753730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535908921.

The product of its (nonzero) digits is 238140, while the sum is 43.

The spelling of 166131753730 in words is "one hundred sixty-six billion, one hundred thirty-one million, seven hundred fifty-three thousand, seven hundred thirty".