20153482091 has 8 divisors (see below), whose sum is σ = 20485538640. Its totient is φ = 19823772672.

The previous prime is 20153482067. The next prime is 20153482103. The reversal of 20153482091 is 19028435102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20153482091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20153482051) 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, 569465 + ... + 603818.

It is an arithmetic number, because the mean of its divisors is an integer number (2560692330).

Almost surely, 2^20153482091 is an apocalyptic number.

20153482091 is a deficient number, since it is larger than the sum of its proper divisors (332056549).

20153482091 is a wasteful number, since it uses less digits than its factorization.

20153482091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1173565.

The product of its (nonzero) digits is 17280, while the sum is 35.

The spelling of 20153482091 in words is "twenty billion, one hundred fifty-three million, four hundred eighty-two thousand, ninety-one".