40668000080 has 40 divisors (see below), whose sum is σ = 94966038600. Its totient is φ = 16196156928.

The previous prime is 40668000073. The next prime is 40668000097. The reversal of 40668000080 is 8000086604.

It can be written as a sum of positive squares in 4 ways, for example, as 1562146576 + 39105853504 = 39524^2 + 197752^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1091615 + ... + 1128254.

It is an arithmetic number, because the mean of its divisors is an integer number (2374150965).

Almost surely, 2^40668000080 is an apocalyptic number.

40668000080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40668000080 is an abundant number, since it is smaller than the sum of its proper divisors (54298038520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40668000080 is a wasteful number, since it uses less digits than its factorization.

40668000080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2220111 (or 2220105 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

Adding to 40668000080 its reverse (8000086604), we get a palindrome (48668086684).

The spelling of 40668000080 in words is "forty billion, six hundred sixty-eight million, eighty", and thus it is an aban number.