85511421416 has 32 divisors (see below), whose sum is σ = 166551006600. Its totient is φ = 41110056960.

The previous prime is 85511421409. The next prime is 85511421427. The reversal of 85511421416 is 61412411558.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 73024252900 + 12487168516 = 270230^2 + 111746^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 85511421416.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 708785 + ... + 820608.

Almost surely, 2^85511421416 is an apocalyptic number.

It is an amenable number.

85511421416 is a deficient number, since it is larger than the sum of its proper divisors (81039585184).

85511421416 is a wasteful number, since it uses less digits than its factorization.

85511421416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1529669 (or 1529665 counting only the distinct ones).

The product of its digits is 38400, while the sum is 38.

It can be divided in two parts, 8551142 and 1416, that added together give a palindrome (8552558).

The spelling of 85511421416 in words is "eighty-five billion, five hundred eleven million, four hundred twenty-one thousand, four hundred sixteen".