85458466557 has 80 divisors (see below), whose sum is σ = 139987552320. Its totient is φ = 51740011008.

The previous prime is 85458466493. The next prime is 85458466571. The reversal of 85458466557 is 75566485458.

85458466557 is a `hidden beast` number, since 8 + 545 + 84 + 6 + 6 + 5 + 5 + 7 = 666.

It is not a de Polignac number, because 85458466557 - 2⁶ = 85458466493 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85458466494 and 85458466503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85458466757) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 4905819 + ... + 4923207.

It is an arithmetic number, because the mean of its divisors is an integer number (1749844404).

Almost surely, 2^85458466557 is an apocalyptic number.

It is an amenable number.

85458466557 is a deficient number, since it is larger than the sum of its proper divisors (54529085763).

85458466557 is a wasteful number, since it uses less digits than its factorization.

85458466557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17544 (or 17535 counting only the distinct ones).

The product of its digits is 161280000, while the sum is 63.

The spelling of 85458466557 in words is "eighty-five billion, four hundred fifty-eight million, four hundred sixty-six thousand, five hundred fifty-seven".