19796596133 has 12 divisors (see below), whose sum is σ = 20826641388. Its totient is φ = 18815184960.

The previous prime is 19796596121. The next prime is 19796596153. The reversal of 19796596133 is 33169569791.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 13219710529 + 6576885604 = 114977^2 + 81098^2 .

It is not a de Polignac number, because 19796596133 - 2⁴ = 19796596117 is a prime.

It is a super-2 number, since 2×19796596133² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19796596153) 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, 36128 + ... + 202233.

It is an arithmetic number, because the mean of its divisors is an integer number (1735553449).

Almost surely, 2^19796596133 is an apocalyptic number.

It is an amenable number.

19796596133 is a deficient number, since it is larger than the sum of its proper divisors (1030045255).

19796596133 is a wasteful number, since it uses less digits than its factorization.

19796596133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238564 (or 238541 counting only the distinct ones).

The product of its digits is 8266860, while the sum is 59.

The spelling of 19796596133 in words is "nineteen billion, seven hundred ninety-six million, five hundred ninety-six thousand, one hundred thirty-three".