85554616247 has 8 divisors (see below), whose sum is σ = 87558271920. Its totient is φ = 83574124480.

The previous prime is 85554616223. The next prime is 85554616267. The reversal of 85554616247 is 74261645558.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85554616247 - 2²⁴ = 85537839031 is a prime.

It is a super-2 number, since 2×85554616247² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85554616267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5783504 + ... + 5798277.

It is an arithmetic number, because the mean of its divisors is an integer number (10944783990).

Almost surely, 2^85554616247 is an apocalyptic number.

85554616247 is a deficient number, since it is larger than the sum of its proper divisors (2003655673).

85554616247 is a wasteful number, since it uses less digits than its factorization.

85554616247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11581953.

The product of its digits is 8064000, while the sum is 53.

The spelling of 85554616247 in words is "eighty-five billion, five hundred fifty-four million, six hundred sixteen thousand, two hundred forty-seven".