86666355 has 80 divisors (see below), whose sum is σ = 165179520. Its totient is φ = 43400448.

The previous prime is 86666341. The next prime is 86666381. The reversal of 86666355 is 55366668.

It is not a de Polignac number, because 86666355 - 2¹² = 86662259 is a prime.

It is a super-2 number, since 2×86666355² = 15022114177972050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 86666355.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 551937 + ... + 552093.

It is an arithmetic number, because the mean of its divisors is an integer number (2064744).

Almost surely, 2^86666355 is an apocalyptic number.

86666355 is a deficient number, since it is larger than the sum of its proper divisors (78513165).

86666355 is a wasteful number, since it uses less digits than its factorization.

86666355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250 (or 241 counting only the distinct ones).

The product of its digits is 777600, while the sum is 45.

The square root of 86666355 is about 9309.4766233124. The cubic root of 86666355 is about 442.5376009416.

The spelling of 86666355 in words is "eighty-six million, six hundred sixty-six thousand, three hundred fifty-five".