164043632620045 has 16 divisors (see below), whose sum is σ = 212266985474880. Its totient is φ = 121295420265600.

The previous prime is 164043632620039. The next prime is 164043632620057. The reversal of 164043632620045 is 540026236340461.

It is a happy number.

It is not a de Polignac number, because 164043632620045 - 2⁹ = 164043632619533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 164043632619977 and 164043632620004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21058228791 + ... + 21058236580.

It is an arithmetic number, because the mean of its divisors is an integer number (13266686592180).

Almost surely, 2^{164043632620045} is an apocalyptic number.

It is an amenable number.

164043632620045 is a deficient number, since it is larger than the sum of its proper divisors (48223352854835).

164043632620045 is a wasteful number, since it uses less digits than its factorization.

164043632620045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42116465436.

The product of its (nonzero) digits is 2488320, while the sum is 46.

The spelling of 164043632620045 in words is "one hundred sixty-four trillion, forty-three billion, six hundred thirty-two million, six hundred twenty thousand, forty-five".