2120026956671 has 16 divisors (see below), whose sum is σ = 2317599664128. Its totient is φ = 1927437573600.

The previous prime is 2120026956659. The next prime is 2120026956689. The reversal of 2120026956671 is 1766596200212.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2120026956671 is a prime.

It is a super-2 number, since 2×2120026956671² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120026956611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 244181 + ... + 2073566.

It is an arithmetic number, because the mean of its divisors is an integer number (144849979008).

Almost surely, 2^{2120026956671} is an apocalyptic number.

2120026956671 is a deficient number, since it is larger than the sum of its proper divisors (197572707457).

2120026956671 is a wasteful number, since it uses less digits than its factorization.

2120026956671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2318822.

The product of its (nonzero) digits is 544320, while the sum is 47.

The spelling of 2120026956671 in words is "two trillion, one hundred twenty billion, twenty-six million, nine hundred fifty-six thousand, six hundred seventy-one".