164345446631603 has 16 divisors (see below), whose sum is σ = 171770365540800. Its totient is φ = 157039641292800.

The previous prime is 164345446631593. The next prime is 164345446631623. The reversal of 164345446631603 is 306136644543461.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 164345446631603 - 2⁶ = 164345446631539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164345446631623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12400898 + ... + 21965271.

It is an arithmetic number, because the mean of its divisors is an integer number (10735647846300).

Almost surely, 2^{164345446631603} is an apocalyptic number.

164345446631603 is a deficient number, since it is larger than the sum of its proper divisors (7424918909197).

164345446631603 is a wasteful number, since it uses less digits than its factorization.

164345446631603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34367902.

The product of its (nonzero) digits is 44789760, while the sum is 56.

The spelling of 164345446631603 in words is "one hundred sixty-four trillion, three hundred forty-five billion, four hundred forty-six million, six hundred thirty-one thousand, six hundred three".