65069620 has 192 divisors, whose sum is σ = 185794560. Its totient is φ = 18547200.

The previous prime is 65069611. The next prime is 65069629. The reversal of 65069620 is 2696056.

65069620 = 436² + 437² + ... + 652².

It is an interprime number because it is at equal distance from previous prime (65069611) and next prime (65069629).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65069629) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1384437 + ... + 1384483.

It is an arithmetic number, because the mean of its divisors is an integer number (967680).

Almost surely, 2^65069620 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65069620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92897280).

65069620 is an abundant number, since it is smaller than the sum of its proper divisors (120724940).

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

65069620 is a wasteful number, since it uses less digits than its factorization.

65069620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134 (or 132 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 65069620 is about 8066.5742418948. The cubic root of 65069620 is about 402.2160748574.

The spelling of 65069620 in words is "sixty-five million, sixty-nine thousand, six hundred twenty".