65675540 has 48 divisors (see below), whose sum is σ = 158868864. Its totient is φ = 22339200.

The previous prime is 65675531. The next prime is 65675549. The reversal of 65675540 is 4557656.

It is an interprime number because it is at equal distance from previous prime (65675531) and next prime (65675549).

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 65675494 and 65675503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65675549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16550 + ... + 20130.

It is an arithmetic number, because the mean of its divisors is an integer number (3309768).

Almost surely, 2^65675540 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 65675540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79434432).

65675540 is an abundant number, since it is smaller than the sum of its proper divisors (93193324).

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

65675540 is a wasteful number, since it uses less digits than its factorization.

65675540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3728 (or 3726 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 38.

The square root of 65675540 is about 8104.0446691760. The cubic root of 65675540 is about 403.4606812011.

The spelling of 65675540 in words is "sixty-five million, six hundred seventy-five thousand, five hundred forty".