65477456 has 60 divisors (see below), whose sum is σ = 144074112. Its totient is φ = 28776000.

The previous prime is 65477449. The next prime is 65477459.

65477456 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65477459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59471 + ... + 60561.

Almost surely, 2^65477456 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 65477456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72037056).

65477456 is an abundant number, since it is smaller than the sum of its proper divisors (78596656).

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

65477456 is a wasteful number, since it uses less digits than its factorization.

65477456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1152 (or 1135 counting only the distinct ones).

The product of its digits is 705600, while the sum is 44.

The square root of 65477456 is about 8091.8141352851. The cubic root of 65477456 is about 403.0546467857.

The spelling of 65477456 in words is "sixty-five million, four hundred seventy-seven thousand, four hundred fifty-six".