65670612 has 96 divisors (see below), whose sum is σ = 192460800. Its totient is φ = 16993152.

The previous prime is 65670611. The next prime is 65670623. The reversal of 65670612 is 21607656.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65670611) 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, 35814 + ... + 37602.

It is an arithmetic number, because the mean of its divisors is an integer number (2004800).

Almost surely, 2^65670612 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 65670612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96230400).

65670612 is an abundant number, since it is smaller than the sum of its proper divisors (126790188).

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

65670612 is a wasteful number, since it uses less digits than its factorization.

65670612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1845 (or 1843 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 65670612 is about 8103.7406177641. The cubic root of 65670612 is about 403.4505896512.

The spelling of 65670612 in words is "sixty-five million, six hundred seventy thousand, six hundred twelve".