65193912 has 144 divisors (see below), whose sum is σ = 217676160. Its totient is φ = 17515008.

The previous prime is 65193901. The next prime is 65193917. The reversal of 65193912 is 21939156.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65193917) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 59433 + ... + 60519.

It is an arithmetic number, because the mean of its divisors is an integer number (1511640).

Almost surely, 2^65193912 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 65193912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108838080).

65193912 is an abundant number, since it is smaller than the sum of its proper divisors (152482248).

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

65193912 is a wasteful number, since it uses less digits than its factorization.

65193912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1130 (or 1116 counting only the distinct ones).

The product of its digits is 14580, while the sum is 36.

The square root of 65193912 is about 8074.2747042691. The cubic root of 65193912 is about 402.4720081353.

The spelling of 65193912 in words is "sixty-five million, one hundred ninety-three thousand, nine hundred twelve".