65155470 has 64 divisors (see below), whose sum is σ = 160807680. Its totient is φ = 16889600.

The previous prime is 65155457. The next prime is 65155477. The reversal of 65155470 is 7455156.

65155470 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65155477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 231730 + ... + 232010.

It is an arithmetic number, because the mean of its divisors is an integer number (2512620).

Almost surely, 2^65155470 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65155470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80403840).

65155470 is an abundant number, since it is smaller than the sum of its proper divisors (95652210).

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

65155470 is a wasteful number, since it uses less digits than its factorization.

65155470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481.

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 65155470 is about 8071.8938298270. The cubic root of 65155470 is about 402.3928858651.

The spelling of 65155470 in words is "sixty-five million, one hundred fifty-five thousand, four hundred seventy".