166850038887 has 8 divisors (see below), whose sum is σ = 254247678336. Its totient is φ = 95342879352.

The previous prime is 166850038871. The next prime is 166850038903. The reversal of 166850038887 is 788830058661.

It is an interprime number because it is at equal distance from previous prime (166850038871) and next prime (166850038903).

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

It is not a de Polignac number, because 166850038887 - 2⁴ = 166850038871 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 166850038887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166850038807) 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, 3972619953 + ... + 3972619994.

It is an arithmetic number, because the mean of its divisors is an integer number (31780959792).

Almost surely, 2^166850038887 is an apocalyptic number.

166850038887 is a deficient number, since it is larger than the sum of its proper divisors (87397639449).

166850038887 is an equidigital number, since it uses as much as digits as its factorization.

166850038887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7945239957.

The product of its (nonzero) digits is 15482880, while the sum is 60.

The spelling of 166850038887 in words is "one hundred sixty-six billion, eight hundred fifty million, thirty-eight thousand, eight hundred eighty-seven".