88648943661 has 12 divisors (see below), whose sum is σ = 128051056380. Its totient is φ = 59098104000.

The previous prime is 88648943659. The next prime is 88648943693. The reversal of 88648943661 is 16634984688.

88648943661 is a `hidden beast` number, since 8 + 8 + 64 + 89 + 436 + 61 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2018794761 + 86630148900 = 44931^2 + 294330^2 .

It is not a de Polignac number, because 88648943661 - 2¹ = 88648943659 is a prime.

It is a super-2 number, since 2×88648943661² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88648923661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 809161 + ... + 912161.

It is an arithmetic number, because the mean of its divisors is an integer number (10670921365).

Almost surely, 2^88648943661 is an apocalyptic number.

It is an amenable number.

88648943661 is a deficient number, since it is larger than the sum of its proper divisors (39402112719).

88648943661 is a wasteful number, since it uses less digits than its factorization.

88648943661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198636 (or 198633 counting only the distinct ones).

The product of its digits is 47775744, while the sum is 63.

The spelling of 88648943661 in words is "eighty-eight billion, six hundred forty-eight million, nine hundred forty-three thousand, six hundred sixty-one".