65516541 has 8 divisors (see below), whose sum is σ = 91953120. Its totient is φ = 41378832.

The previous prime is 65516537. The next prime is 65516557. The reversal of 65516541 is 14561556.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 65516541 - 2² = 65516537 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65516041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 574650 + ... + 574763.

It is an arithmetic number, because the mean of its divisors is an integer number (11494140).

Almost surely, 2^65516541 is an apocalyptic number.

It is an amenable number.

65516541 is a deficient number, since it is larger than the sum of its proper divisors (26436579).

65516541 is a wasteful number, since it uses less digits than its factorization.

65516541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1149435.

The product of its digits is 18000, while the sum is 33.

The square root of 65516541 is about 8094.2288700036. The cubic root of 65516541 is about 403.1348283644.

The spelling of 65516541 in words is "sixty-five million, five hundred sixteen thousand, five hundred forty-one".