65675904 has 128 divisors (see below), whose sum is σ = 203575680. Its totient is φ = 18370560.

The previous prime is 65675903. The next prime is 65675917. The reversal of 65675904 is 40957656.

It is a tau number, because it is divible by the number of its divisors (128).

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 (65675903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142234 + ... + 142694.

It is an arithmetic number, because the mean of its divisors is an integer number (1590435).

Almost surely, 2^65675904 is an apocalyptic number.

65675904 is a gapful number since it is divisible by the number (64) 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 65675904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101787840).

65675904 is an abundant number, since it is smaller than the sum of its proper divisors (137899776).

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

65675904 is a wasteful number, since it uses less digits than its factorization.

65675904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538 (or 526 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 42.

The square root of 65675904 is about 8104.0671270665. The cubic root of 65675904 is about 403.4614265797.

The spelling of 65675904 in words is "sixty-five million, six hundred seventy-five thousand, nine hundred four".