86661125046 has 128 divisors (see below), whose sum is σ = 215774668800. Its totient is φ = 25639004160.

The previous prime is 86661125039. The next prime is 86661125059. The reversal of 86661125046 is 64052116668.

It is a junction number, because it is equal to n+sod(n) for n = 86661124992 and 86661125010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1470190 + ... + 1527998.

It is an arithmetic number, because the mean of its divisors is an integer number (1685739600).

Almost surely, 2^86661125046 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86661125046, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107887334400).

86661125046 is an abundant number, since it is smaller than the sum of its proper divisors (129113543754).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86661125046 is a wasteful number, since it uses less digits than its factorization.

86661125046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57931 (or 57925 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 86661125046 in words is "eighty-six billion, six hundred sixty-one million, one hundred twenty-five thousand, forty-six".