40178598916 has 81 divisors (see below), whose sum is σ = 75284397279. Its totient is φ = 18761745600.

The previous prime is 40178598871. The next prime is 40178598931. The reversal of 40178598916 is 61989587104.

The square root of 40178598916 is 200446.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 5397840900 + 34780758016 = 73470^2 + 186496^2 .

It is a super-2 number, since 2×40178598916² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 658665526 + ... + 658665586.

Almost surely, 2^40178598916 is an apocalyptic number.

40178598916 is the 200446-th square number.

It is an amenable number.

40178598916 is a deficient number, since it is larger than the sum of its proper divisors (35105798363).

40178598916 is an equidigital number, since it uses as much as digits as its factorization.

40178598916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294 (or 147 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 58.

The spelling of 40178598916 in words is "forty billion, one hundred seventy-eight million, five hundred ninety-eight thousand, nine hundred sixteen".