6620273140261 has 16 divisors (see below), whose sum is σ = 7268791134528. Its totient is φ = 5979659587200.

The previous prime is 6620273140241. The next prime is 6620273140267. The reversal of 6620273140261 is 1620413720266.

It is a cyclic number.

It is not a de Polignac number, because 6620273140261 - 2³⁹ = 6070517326373 is a prime.

It is a super-2 number, since 2×6620273140261² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6620273140267) 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, 2074630 + ... + 4188631.

It is an arithmetic number, because the mean of its divisors is an integer number (454299445908).

Almost surely, 2^{6620273140261} is an apocalyptic number.

It is an amenable number.

6620273140261 is a deficient number, since it is larger than the sum of its proper divisors (648517994267).

6620273140261 is a wasteful number, since it uses less digits than its factorization.

6620273140261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6263892.

The product of its (nonzero) digits is 145152, while the sum is 40.

The spelling of 6620273140261 in words is "six trillion, six hundred twenty billion, two hundred seventy-three million, one hundred forty thousand, two hundred sixty-one".