20153261195 has 12 divisors (see below), whose sum is σ = 24855206544. Its totient is φ = 15686857440.

The previous prime is 20153261143. The next prime is 20153261209. The reversal of 20153261195 is 59116235102.

It is not a de Polignac number, because 20153261195 - 2¹⁸ = 20152999051 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1465271 + ... + 1478960.

It is an arithmetic number, because the mean of its divisors is an integer number (2071267212).

Almost surely, 2^20153261195 is an apocalyptic number.

20153261195 is a deficient number, since it is larger than the sum of its proper divisors (4701945349).

20153261195 is an equidigital number, since it uses as much as digits as its factorization.

20153261195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2944310 (or 2944273 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 35.

Adding to 20153261195 its reverse (59116235102), we get a palindrome (79269496297).

The spelling of 20153261195 in words is "twenty billion, one hundred fifty-three million, two hundred sixty-one thousand, one hundred ninety-five".