20165074463 has 8 divisors (see below), whose sum is σ = 20820164736. Its totient is φ = 19510272000.

The previous prime is 20165074427. The next prime is 20165074493. The reversal of 20165074463 is 36447056102.

It is a happy number.

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 20165074463 - 2¹⁸ = 20164812319 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20165074493) 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, 75263 + ... + 214463.

It is an arithmetic number, because the mean of its divisors is an integer number (2602520592).

Almost surely, 2^20165074463 is an apocalyptic number.

20165074463 is a deficient number, since it is larger than the sum of its proper divisors (655090273).

20165074463 is a wasteful number, since it uses less digits than its factorization.

20165074463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143905.

The product of its (nonzero) digits is 120960, while the sum is 38.

The spelling of 20165074463 in words is "twenty billion, one hundred sixty-five million, seventy-four thousand, four hundred sixty-three".