88245516631661 has 2 divisors, whose sum is σ = 88245516631662. Its totient is φ = 88245516631660.

The previous prime is 88245516631621. The next prime is 88245516631717. The reversal of 88245516631661 is 16613661554288.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88189190628100 + 56326003561 = 9390910^2 + 237331^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-88245516631661 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 88245516631594 and 88245516631603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88245516631621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44122758315830 + 44122758315831.

It is an arithmetic number, because the mean of its divisors is an integer number (44122758315831).

Almost surely, 2^{88245516631661} is an apocalyptic number.

It is an amenable number.

88245516631661 is a deficient number, since it is larger than the sum of its proper divisors (1).

88245516631661 is an equidigital number, since it uses as much as digits as its factorization.

88245516631661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 49766400, while the sum is 62.

The spelling of 88245516631661 in words is "eighty-eight trillion, two hundred forty-five billion, five hundred sixteen million, six hundred thirty-one thousand, six hundred sixty-one".