20435467161 has 8 divisors (see below), whose sum is σ = 27247963840. Its totient is φ = 13623307632.

The previous prime is 20435467153. The next prime is 20435467163. The reversal of 20435467161 is 16176453402.

It is a happy number.

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

It is not a de Polignac number, because 20435467161 - 2³ = 20435467153 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20435467163) 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, 150876 + ... + 252258.

It is an arithmetic number, because the mean of its divisors is an integer number (3405995480).

Almost surely, 2^20435467161 is an apocalyptic number.

It is an amenable number.

20435467161 is a deficient number, since it is larger than the sum of its proper divisors (6812496679).

20435467161 is a wasteful number, since it uses less digits than its factorization.

20435467161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168575.

The product of its (nonzero) digits is 120960, while the sum is 39.

The spelling of 20435467161 in words is "twenty billion, four hundred thirty-five million, four hundred sixty-seven thousand, one hundred sixty-one".