88400800066 has 8 divisors (see below), whose sum is σ = 132613127100. Its totient is φ = 44196424368.

The previous prime is 88400800063. The next prime is 88400800069. The reversal of 88400800066 is 66000800488.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (88400800063) and next prime (88400800069).

It can be written as a sum of positive squares in 2 ways, for example, as 74646436225 + 13754363841 = 273215^2 + 117279^2 .

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

It is not an unprimeable number, because it can be changed into a prime (88400800063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1959961 + ... + 2004556.

Almost surely, 2^88400800066 is an apocalyptic number.

88400800066 is a deficient number, since it is larger than the sum of its proper divisors (44212327034).

88400800066 is a wasteful number, since it uses less digits than its factorization.

88400800066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3975668.

The product of its (nonzero) digits is 73728, while the sum is 40.

The spelling of 88400800066 in words is "eighty-eight billion, four hundred million, eight hundred thousand, sixty-six".