164981947107 has 8 divisors (see below), whose sum is σ = 223259152576. Its totient is φ = 108346353192.

The previous prime is 164981947061. The next prime is 164981947121. The reversal of 164981947107 is 701749189461.

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

It is not a de Polignac number, because 164981947107 - 2⁶ = 164981947043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164981947147) 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, 410402653 + ... + 410403054.

It is an arithmetic number, because the mean of its divisors is an integer number (27907394072).

Almost surely, 2^164981947107 is an apocalyptic number.

164981947107 is a deficient number, since it is larger than the sum of its proper divisors (58277205469).

164981947107 is an equidigital number, since it uses as much as digits as its factorization.

164981947107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820805777.

The product of its (nonzero) digits is 3048192, while the sum is 57.

The spelling of 164981947107 in words is "one hundred sixty-four billion, nine hundred eighty-one million, nine hundred forty-seven thousand, one hundred seven".