65478336 has 224 divisors, whose sum is σ = 223162368. Its totient is φ = 16450560.

The previous prime is 65478331. The next prime is 65478337. The reversal of 65478336 is 63387456.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (65478331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 635661 + ... + 635763.

Almost surely, 2^65478336 is an apocalyptic number.

65478336 is a gapful number since it is divisible by the number (66) 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 65478336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111581184).

65478336 is an abundant number, since it is smaller than the sum of its proper divisors (157684032).

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

65478336 is a wasteful number, since it uses less digits than its factorization.

65478336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179 (or 169 counting only the distinct ones).

The product of its digits is 362880, while the sum is 42.

The square root of 65478336 is about 8091.8685110424. The cubic root of 65478336 is about 403.0564524275.

The spelling of 65478336 in words is "sixty-five million, four hundred seventy-eight thousand, three hundred thirty-six".