85663318545 has 96 divisors (see below), whose sum is σ = 172775116800. Its totient is φ = 38455990272.

The previous prime is 85663318519. The next prime is 85663318571. The reversal of 85663318545 is 54581336658.

It is a happy number.

85663318545 is a `hidden beast` number, since 8 + 5 + 6 + 63 + 31 + 8 + 545 = 666.

It is an interprime number because it is at equal distance from previous prime (85663318519) and next prime (85663318571).

It is not a de Polignac number, because 85663318545 - 2⁸ = 85663318289 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85663318491 and 85663318500.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3868816 + ... + 3890894.

It is an arithmetic number, because the mean of its divisors is an integer number (1799740800).

Almost surely, 2^85663318545 is an apocalyptic number.

It is an amenable number.

85663318545 is an abundant number, since it is smaller than the sum of its proper divisors (87111798255).

85663318545 is a wasteful number, since it uses less digits than its factorization.

85663318545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22319 (or 22316 counting only the distinct ones).

The product of its digits is 10368000, while the sum is 54.

The spelling of 85663318545 in words is "eighty-five billion, six hundred sixty-three million, three hundred eighteen thousand, five hundred forty-five".