20328153494 has 8 divisors (see below), whose sum is σ = 33264251208. Its totient is φ = 9240069760.

The previous prime is 20328153481. The next prime is 20328153509. The reversal of 20328153494 is 49435182302.

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

It is a super-3 number, since 3×20328153494³ (a number of 32 digits) contains 333 as substring.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 462003467 + ... + 462003510.

It is an arithmetic number, because the mean of its divisors is an integer number (4158031401).

Almost surely, 2^20328153494 is an apocalyptic number.

20328153494 is a deficient number, since it is larger than the sum of its proper divisors (12936097714).

20328153494 is a wasteful number, since it uses less digits than its factorization.

20328153494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924006990.

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 20328153494 in words is "twenty billion, three hundred twenty-eight million, one hundred fifty-three thousand, four hundred ninety-four".