88166219461 has 2 divisors, whose sum is σ = 88166219462. Its totient is φ = 88166219460.

The previous prime is 88166219459. The next prime is 88166219483. The reversal of 88166219461 is 16491266188.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73769819236 + 14396400225 = 271606^2 + 119985^2 .

It is a cyclic number.

It is not a de Polignac number, because 88166219461 - 2¹ = 88166219459 is a prime.

Together with 88166219459, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 88166219399 and 88166219408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88166219161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44083109730 + 44083109731.

It is an arithmetic number, because the mean of its divisors is an integer number (44083109731).

Almost surely, 2^88166219461 is an apocalyptic number.

It is an amenable number.

88166219461 is a deficient number, since it is larger than the sum of its proper divisors (1).

88166219461 is an equidigital number, since it uses as much as digits as its factorization.

88166219461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 995328, while the sum is 52.

The spelling of 88166219461 in words is "eighty-eight billion, one hundred sixty-six million, two hundred nineteen thousand, four hundred sixty-one".