20115950169 has 8 divisors (see below), whose sum is σ = 30652876480. Its totient is φ = 11494828656.

The previous prime is 20115950159. The next prime is 20115950191. The reversal of 20115950169 is 96105951102.

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

It is not a de Polignac number, because 20115950169 - 2⁹ = 20115949657 is a prime.

It is a super-2 number, since 2×20115950169² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20115950119) 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, 478951174 + ... + 478951215.

It is an arithmetic number, because the mean of its divisors is an integer number (3831609560).

Almost surely, 2^20115950169 is an apocalyptic number.

It is an amenable number.

20115950169 is a deficient number, since it is larger than the sum of its proper divisors (10536926311).

20115950169 is an equidigital number, since it uses as much as digits as its factorization.

20115950169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957902399.

The product of its (nonzero) digits is 24300, while the sum is 39.

The spelling of 20115950169 in words is "twenty billion, one hundred fifteen million, nine hundred fifty thousand, one hundred sixty-nine".