20036668336838 has 192 divisors, whose sum is σ = 34291924992000. Its totient is φ = 8751706508160.

The previous prime is 20036668336837. The next prime is 20036668336843. The reversal of 20036668336838 is 83863386663002.

It is a happy number.

It is a super-3 number, since 3×20036668336838³ (a number of 41 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20036668336837) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 14080581395 + ... + 14080582817.

It is an arithmetic number, because the mean of its divisors is an integer number (178603776000).

Almost surely, 2^{20036668336838} is an apocalyptic number.

20036668336838 is a deficient number, since it is larger than the sum of its proper divisors (14255256655162).

20036668336838 is a wasteful number, since it uses less digits than its factorization.

20036668336838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1795 (or 1766 counting only the distinct ones).

The product of its (nonzero) digits is 107495424, while the sum is 62.

The spelling of 20036668336838 in words is "twenty trillion, thirty-six billion, six hundred sixty-eight million, three hundred thirty-six thousand, eight hundred thirty-eight".