20146164231047 has 8 divisors (see below), whose sum is σ = 21314135818800. Its totient is φ = 18988957358784.

The previous prime is 20146164231023. The next prime is 20146164231079. The reversal of 20146164231047 is 74013246164102.

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

It is a cyclic number.

It is not a de Polignac number, because 20146164231047 - 2³⁸ = 19871286324103 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20146164230995 and 20146164231013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20146164230047) 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 7 ways as a sum of consecutive naturals, for example, 2691175022 + ... + 2691182507.

It is an arithmetic number, because the mean of its divisors is an integer number (2664266977350).

Almost surely, 2^{20146164231047} is an apocalyptic number.

20146164231047 is a deficient number, since it is larger than the sum of its proper divisors (1167971587753).

20146164231047 is a wasteful number, since it uses less digits than its factorization.

20146164231047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5382357745.

The product of its (nonzero) digits is 193536, while the sum is 41.

The spelling of 20146164231047 in words is "twenty trillion, one hundred forty-six billion, one hundred sixty-four million, two hundred thirty-one thousand, forty-seven".