88493251661 has 2 divisors, whose sum is σ = 88493251662. Its totient is φ = 88493251660.

The previous prime is 88493251603. The next prime is 88493251703. The reversal of 88493251661 is 16615239488.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61506976036 + 26986275625 = 248006^2 + 164275^2 .

It is a cyclic number.

It is not a de Polignac number, because 88493251661 - 2⁶ = 88493251597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88493251261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44246625830 + 44246625831.

It is an arithmetic number, because the mean of its divisors is an integer number (44246625831).

Almost surely, 2^88493251661 is an apocalyptic number.

It is an amenable number.

88493251661 is a deficient number, since it is larger than the sum of its proper divisors (1).

88493251661 is an equidigital number, since it uses as much as digits as its factorization.

88493251661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2488320, while the sum is 53.

The spelling of 88493251661 in words is "eighty-eight billion, four hundred ninety-three million, two hundred fifty-one thousand, six hundred sixty-one".