164884490949515 has 4 divisors (see below), whose sum is σ = 197861389139424. Its totient is φ = 131907592759608.

The previous prime is 164884490949499. The next prime is 164884490949517. The reversal of 164884490949515 is 515949094488461.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 164884490949515 - 2⁴ = 164884490949499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164884490949517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16488449094947 + ... + 16488449094956.

It is an arithmetic number, because the mean of its divisors is an integer number (49465347284856).

Almost surely, 2^{164884490949515} is an apocalyptic number.

164884490949515 is a deficient number, since it is larger than the sum of its proper divisors (32976898189909).

164884490949515 is an equidigital number, since it uses as much as digits as its factorization.

164884490949515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32976898189908.

The product of its (nonzero) digits is 1791590400, while the sum is 77.

The spelling of 164884490949515 in words is "one hundred sixty-four trillion, eight hundred eighty-four billion, four hundred ninety million, nine hundred forty-nine thousand, five hundred fifteen".