20153321426 has 24 divisors (see below), whose sum is σ = 35223526656. Its totient is φ = 8622883080.

The previous prime is 20153321369. The next prime is 20153321429. The reversal of 20153321426 is 62412335102.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20153321429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 109910 + ... + 228881.

It is an arithmetic number, because the mean of its divisors is an integer number (1467646944).

Almost surely, 2^20153321426 is an apocalyptic number.

20153321426 is a deficient number, since it is larger than the sum of its proper divisors (15070205230).

20153321426 is a wasteful number, since it uses less digits than its factorization.

20153321426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339414 (or 339407 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 20153321426 its reverse (62412335102), we get a palindrome (82565656528).

The spelling of 20153321426 in words is "twenty billion, one hundred fifty-three million, three hundred twenty-one thousand, four hundred twenty-six".