65090688 has 192 divisors, whose sum is σ = 201592800. Its totient is φ = 18530304.

The previous prime is 65090687. The next prime is 65090693. The reversal of 65090688 is 88609056.

It is a tau number, because it is divible by the number of its divisors (192).

It is not an unprimeable number, because it can be changed into a prime (65090681) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1103203 + ... + 1103261.

Almost surely, 2^65090688 is an apocalyptic number.

65090688 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65090688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100796400).

65090688 is an abundant number, since it is smaller than the sum of its proper divisors (136502112).

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

65090688 is a wasteful number, since it uses less digits than its factorization.

65090688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119 (or 94 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 65090688 is about 8067.8800189393. The cubic root of 65090688 is about 402.2594795158.

The spelling of 65090688 in words is "sixty-five million, ninety thousand, six hundred eighty-eight".