65270070 has 64 divisors (see below), whose sum is σ = 175818240. Its totient is φ = 17229024.

The previous prime is 65270063. The next prime is 65270071. The reversal of 65270070 is 7007256.

65270070 is a `hidden beast` number, since 652 + 7 + 0 + 0 + 7 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65270071) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26637 + ... + 28983.

It is an arithmetic number, because the mean of its divisors is an integer number (2747160).

Almost surely, 2^65270070 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65270070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87909120).

65270070 is an abundant number, since it is smaller than the sum of its proper divisors (110548170).

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

65270070 is a wasteful number, since it uses less digits than its factorization.

65270070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2466 (or 2460 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 65270070 is about 8078.9894170001. The cubic root of 65270070 is about 402.6286666051.

The spelling of 65270070 in words is "sixty-five million, two hundred seventy thousand, seventy".