85555577756 has 12 divisors (see below), whose sum is σ = 163333375800. Its totient is φ = 38888898960.

The previous prime is 85555577753. The next prime is 85555577837. The reversal of 85555577756 is 65777555558.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 85555577692 and 85555577701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85555577753) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 972222431 + ... + 972222518.

It is an arithmetic number, because the mean of its divisors is an integer number (13611114650).

Almost surely, 2^85555577756 is an apocalyptic number.

It is an amenable number.

85555577756 is a deficient number, since it is larger than the sum of its proper divisors (77777798044).

85555577756 is a wasteful number, since it uses less digits than its factorization.

85555577756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1944444964 (or 1944444962 counting only the distinct ones).

The product of its digits is 257250000, while the sum is 65.

The spelling of 85555577756 in words is "eighty-five billion, five hundred fifty-five million, five hundred seventy-seven thousand, seven hundred fifty-six".