20013123677633 has 8 divisors (see below), whose sum is σ = 20895011507328. Its totient is φ = 19132215182784.

The previous prime is 20013123677611. The next prime is 20013123677671. The reversal of 20013123677633 is 33677632131002.

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 20013123677633 - 2¹⁴ = 20013123661249 is a prime.

It is a super-2 number, since 2×20013123677633² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20013123277633) 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, 244791941 + ... + 244873682.

It is an arithmetic number, because the mean of its divisors is an integer number (2611876438416).

Almost surely, 2^{20013123677633} is an apocalyptic number.

20013123677633 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20013123677633 is a deficient number, since it is larger than the sum of its proper divisors (881887829695).

20013123677633 is a wasteful number, since it uses less digits than its factorization.

20013123677633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489667423.

The product of its (nonzero) digits is 571536, while the sum is 44.

The spelling of 20013123677633 in words is "twenty trillion, thirteen billion, one hundred twenty-three million, six hundred seventy-seven thousand, six hundred thirty-three".