128116048394896 has 15 divisors (see below), whose sum is σ = 248224931486121. Its totient is φ = 64058001559776.

The previous prime is 128116048394891. The next prime is 128116048394933. The reversal of 128116048394896 is 698493840611821.

The square root of 128116048394896 is 11318836.

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

It can be written as a sum of positive squares in only one way, i.e., 85341309137296 + 42774739257600 = 9238036^2 + 6540240^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128116048394891) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 43860490 + ... + 46690198.

Almost surely, 2^{128116048394896} is an apocalyptic number.

128116048394896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

128116048394896 is the 11318836-th square number.

It is an amenable number.

128116048394896 is a deficient number, since it is larger than the sum of its proper divisors (120108883091225).

128116048394896 is an frugal number, since it uses more digits than its factorization.

128116048394896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5659426 (or 2829711 counting only the distinct ones).

The product of its (nonzero) digits is 143327232, while the sum is 70.

The spelling of 128116048394896 in words is "one hundred twenty-eight trillion, one hundred sixteen billion, forty-eight million, three hundred ninety-four thousand, eight hundred ninety-six".