65615061 has 8 divisors (see below), whose sum is σ = 87524640. Its totient is φ = 43724432.

The previous prime is 65615051. The next prime is 65615063. The reversal of 65615061 is 16051656.

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

It is a cyclic number.

It is not a de Polignac number, because 65615061 - 2²³ = 57226453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65615063) 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, 9226 + ... + 14708.

It is an arithmetic number, because the mean of its divisors is an integer number (10940580).

Almost surely, 2^65615061 is an apocalyptic number.

It is an amenable number.

65615061 is a deficient number, since it is larger than the sum of its proper divisors (21909579).

65615061 is a wasteful number, since it uses less digits than its factorization.

65615061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9475.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 65615061 is about 8100.3124013830. The cubic root of 65615061 is about 403.3367974719.

The spelling of 65615061 in words is "sixty-five million, six hundred fifteen thousand, sixty-one".