20163673611777 has 8 divisors (see below), whose sum is σ = 26885535446016. Its totient is φ = 13442130426032.

The previous prime is 20163673611743. The next prime is 20163673611841. The reversal of 20163673611777 is 77711637636102.

It is a happy number.

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 20163673611777 - 2¹⁴ = 20163673595393 is a prime.

It is a super-2 number, since 2×20163673611777² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20163673611737) 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, 79514433 + ... + 79767614.

It is an arithmetic number, because the mean of its divisors is an integer number (3360691930752).

Almost surely, 2^{20163673611777} is an apocalyptic number.

It is an amenable number.

20163673611777 is a deficient number, since it is larger than the sum of its proper divisors (6721861834239).

20163673611777 is a wasteful number, since it uses less digits than its factorization.

20163673611777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159324247.

The product of its (nonzero) digits is 9335088, while the sum is 57.

The spelling of 20163673611777 in words is "twenty trillion, one hundred sixty-three billion, six hundred seventy-three million, six hundred eleven thousand, seven hundred seventy-seven".