866340153 has 24 divisors (see below), whose sum is σ = 1430956800. Its totient is φ = 494771904.

The previous prime is 866340121. The next prime is 866340191. The reversal of 866340153 is 351043668.

866340153 is a `hidden beast` number, since 8 + 6 + 634 + 0 + 15 + 3 = 666.

It is not a de Polignac number, because 866340153 - 2⁵ = 866340121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (866340193) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 169408 + ... + 174446.

It is an arithmetic number, because the mean of its divisors is an integer number (59623200).

Almost surely, 2^866340153 is an apocalyptic number.

It is an amenable number.

866340153 is a deficient number, since it is larger than the sum of its proper divisors (564616647).

866340153 is a wasteful number, since it uses less digits than its factorization.

866340153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7781 (or 7778 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 866340153 is about 29433.6568064520. The cubic root of 866340153 is about 953.2997544560.

The spelling of 866340153 in words is "eight hundred sixty-six million, three hundred forty thousand, one hundred fifty-three".