65614920 has 96 divisors (see below), whose sum is σ = 229003200. Its totient is φ = 14996352.

The previous prime is 65614891. The next prime is 65614943. The reversal of 65614920 is 2941656.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 301 + ... + 11459.

It is an arithmetic number, because the mean of its divisors is an integer number (2385450).

Almost surely, 2^65614920 is an apocalyptic number.

65614920 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65614920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114501600).

65614920 is an abundant number, since it is smaller than the sum of its proper divisors (163388280).

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

65614920 is a wasteful number, since it uses less digits than its factorization.

65614920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11187 (or 11176 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 65614920 is about 8100.3036980103. The cubic root of 65614920 is about 403.3365085620.

It can be divided in two parts, 656 and 14920, that added together give a triangular number (15576 = T₁₇₆).

The spelling of 65614920 in words is "sixty-five million, six hundred fourteen thousand, nine hundred twenty".