1623161700247 has 2 divisors, whose sum is σ = 1623161700248. Its totient is φ = 1623161700246.

The previous prime is 1623161700239. The next prime is 1623161700253. The reversal of 1623161700247 is 7420071613261.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1623161700247 - 2³ = 1623161700239 is a prime.

It is a super-2 number, since 2×1623161700247² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1623161700647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 811580850123 + 811580850124.

It is an arithmetic number, because the mean of its divisors is an integer number (811580850124).

Almost surely, 2^{1623161700247} is an apocalyptic number.

1623161700247 is a deficient number, since it is larger than the sum of its proper divisors (1).

1623161700247 is an equidigital number, since it uses as much as digits as its factorization.

1623161700247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 40.

The spelling of 1623161700247 in words is "one trillion, six hundred twenty-three billion, one hundred sixty-one million, seven hundred thousand, two hundred forty-seven".