6552167101021 has 2 divisors, whose sum is σ = 6552167101022. Its totient is φ = 6552167101020.

The previous prime is 6552167101019. The next prime is 6552167101127. The reversal of 6552167101021 is 1201017612556.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5964585062500 + 587582038521 = 2442250^2 + 766539^2 .

It is a cyclic number.

It is not a de Polignac number, because 6552167101021 - 2¹ = 6552167101019 is a prime.

Together with 6552167101019, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6552167801021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3276083550510 + 3276083550511.

It is an arithmetic number, because the mean of its divisors is an integer number (3276083550511).

Almost surely, 2^{6552167101021} is an apocalyptic number.

It is an amenable number.

6552167101021 is a deficient number, since it is larger than the sum of its proper divisors (1).

6552167101021 is an equidigital number, since it uses as much as digits as its factorization.

6552167101021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25200, while the sum is 37.

The spelling of 6552167101021 in words is "six trillion, five hundred fifty-two billion, one hundred sixty-seven million, one hundred one thousand, twenty-one".