2077667721171 has 24 divisors (see below), whose sum is σ = 3430149874944. Its totient is φ = 1187117823600.

The previous prime is 2077667721169. The next prime is 2077667721223. The reversal of 2077667721171 is 1711277667702.

It is not a de Polignac number, because 2077667721171 - 2¹ = 2077667721169 is a prime.

It is a super-2 number, since 2×2077667721171² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2077667721671) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1053271 + ... + 2294496.

It is an arithmetic number, because the mean of its divisors is an integer number (142922911456).

Almost surely, 2^{2077667721171} is an apocalyptic number.

2077667721171 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2077667721171 is a deficient number, since it is larger than the sum of its proper divisors (1352482153773).

2077667721171 is a wasteful number, since it uses less digits than its factorization.

2077667721171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3357631 (or 3357628 counting only the distinct ones).

The product of its (nonzero) digits is 2420208, while the sum is 54.

The spelling of 2077667721171 in words is "two trillion, seventy-seven billion, six hundred sixty-seven million, seven hundred twenty-one thousand, one hundred seventy-one".