7366351621 has 2 divisors, whose sum is σ = 7366351622. Its totient is φ = 7366351620.

The previous prime is 7366351607. The next prime is 7366351627. The reversal of 7366351621 is 1261536637.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6771479521 + 594872100 = 82289^2 + 24390^2 .

It is a cyclic number.

It is not a de Polignac number, because 7366351621 - 2⁵ = 7366351589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7366351627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3683175810 + 3683175811.

It is an arithmetic number, because the mean of its divisors is an integer number (3683175811).

Almost surely, 2^7366351621 is an apocalyptic number.

It is an amenable number.

7366351621 is a deficient number, since it is larger than the sum of its proper divisors (1).

7366351621 is an equidigital number, since it uses as much as digits as its factorization.

7366351621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 40.

The square root of 7366351621 is about 85827.4526069602. The cubic root of 7366351621 is about 1945.7370491239.

The spelling of 7366351621 in words is "seven billion, three hundred sixty-six million, three hundred fifty-one thousand, six hundred twenty-one".