65120155 has 8 divisors (see below), whose sum is σ = 78197184. Its totient is φ = 52060800.

The previous prime is 65120137. The next prime is 65120203. The reversal of 65120155 is 55102156.

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

It is a de Polignac number, because none of the positive numbers 2^k-65120155 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5875 + ... + 12835.

It is an arithmetic number, because the mean of its divisors is an integer number (9774648).

Almost surely, 2^65120155 is an apocalyptic number.

65120155 is a deficient number, since it is larger than the sum of its proper divisors (13077029).

65120155 is a wasteful number, since it uses less digits than its factorization.

65120155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8837.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 65120155 is about 8069.7060045580. The cubic root of 65120155 is about 402.3201722313.

The spelling of 65120155 in words is "sixty-five million, one hundred twenty thousand, one hundred fifty-five".