128653696 has 16 divisors (see below), whose sum is σ = 256302540. Its totient is φ = 64326784.

The previous prime is 128653691. The next prime is 128653717. The reversal of 128653696 is 696356821.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128653691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502426 + ... + 502681.

Almost surely, 2^128653696 is an apocalyptic number.

128653696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

128653696 is a deficient number, since it is larger than the sum of its proper divisors (127648844).

128653696 is an equidigital number, since it uses as much as digits as its factorization.

128653696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005121 (or 1005109 counting only the distinct ones).

The product of its digits is 466560, while the sum is 46.

The square root of 128653696 is about 11342.5612627836. The cubic root of 128653696 is about 504.8248858582.

It can be divided in two parts, 12865 and 3696, that added together give a palindrome (16561).

The spelling of 128653696 in words is "one hundred twenty-eight million, six hundred fifty-three thousand, six hundred ninety-six".