65156630 has 64 divisors (see below), whose sum is σ = 150239232. Its totient is φ = 19751040.

The previous prime is 65156627. The next prime is 65156647. The reversal of 65156630 is 3665156.

65156630 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 an unprimeable number.

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, 27347 + ... + 29633.

It is an arithmetic number, because the mean of its divisors is an integer number (2347488).

Almost surely, 2^65156630 is an apocalyptic number.

65156630 is an abundant number, since it is smaller than the sum of its proper divisors (85082602).

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

65156630 is a wasteful number, since it uses less digits than its factorization.

65156630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2349.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 65156630 is about 8071.9656837724. The cubic root of 65156630 is about 402.3952738610.

The spelling of 65156630 in words is "sixty-five million, one hundred fifty-six thousand, six hundred thirty".