65155983 has 8 divisors (see below), whose sum is σ = 87312000. Its totient is φ = 43218648.

The previous prime is 65155973. The next prime is 65155999. The reversal of 65155983 is 38955156.

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

It is not a de Polignac number, because 65155983 - 2²⁴ = 48378767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65155903) 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, 53973 + ... + 55166.

It is an arithmetic number, because the mean of its divisors is an integer number (10914000).

Almost surely, 2^65155983 is an apocalyptic number.

65155983 is a deficient number, since it is larger than the sum of its proper divisors (22156017).

65155983 is a wasteful number, since it uses less digits than its factorization.

65155983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109341.

The product of its digits is 162000, while the sum is 42.

The square root of 65155983 is about 8071.9256066939. The cubic root of 65155983 is about 402.3939419392.

The spelling of 65155983 in words is "sixty-five million, one hundred fifty-five thousand, nine hundred eighty-three".