65481696 has 168 divisors, whose sum is σ = 221450544. Its totient is φ = 18662400.

The previous prime is 65481673. The next prime is 65481697. The reversal of 65481696 is 69618456.

65481696 is a `hidden beast` number, since 6 + 548 + 16 + 96 = 666.

It is a tau number, because it is divible by the number of its divisors (168).

It is a super-2 number, since 2×65481696² = 8575705022072832, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65481697) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 163096 + ... + 163496.

It is an arithmetic number, because the mean of its divisors is an integer number (1318158).

Almost surely, 2^65481696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65481696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110725272).

65481696 is an abundant number, since it is smaller than the sum of its proper divisors (155968848).

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

65481696 is an equidigital number, since it uses as much as digits as its factorization.

65481696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436 (or 413 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 65481696 is about 8092.0761242094. The cubic root of 65481696 is about 403.0633465475.

The spelling of 65481696 in words is "sixty-five million, four hundred eighty-one thousand, six hundred ninety-six".