20234033657 has 8 divisors (see below), whose sum is σ = 20608534080. Its totient is φ = 19860585040.

The previous prime is 20234033587. The next prime is 20234033683. The reversal of 20234033657 is 75633043202.

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

It is a cyclic number.

It is not a de Polignac number, because 20234033657 - 2⁸ = 20234033401 is a prime.

It is a super-2 number, since 2×20234033657² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20234033357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 224069 + ... + 301122.

It is an arithmetic number, because the mean of its divisors is an integer number (2576066760).

Almost surely, 2^20234033657 is an apocalyptic number.

It is an amenable number.

20234033657 is a deficient number, since it is larger than the sum of its proper divisors (374500423).

20234033657 is an equidigital number, since it uses as much as digits as its factorization.

20234033657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525903.

The product of its (nonzero) digits is 90720, while the sum is 35.

Adding to 20234033657 its reverse (75633043202), we get a palindrome (95867076859).

The spelling of 20234033657 in words is "twenty billion, two hundred thirty-four million, thirty-three thousand, six hundred fifty-seven".