65119384 has 128 divisors (see below), whose sum is σ = 155520000. Its totient is φ = 25159680.

The previous prime is 65119363. The next prime is 65119387. The reversal of 65119384 is 48391156.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65119387) 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, 824257 + ... + 824335.

It is an arithmetic number, because the mean of its divisors is an integer number (1215000).

Almost surely, 2^65119384 is an apocalyptic number.

65119384 is the 5104-th heptagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65119384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77760000).

65119384 is an abundant number, since it is smaller than the sum of its proper divisors (90400616).

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

65119384 is a wasteful number, since it uses less digits than its factorization.

65119384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161 (or 157 counting only the distinct ones).

The product of its digits is 25920, while the sum is 37.

The square root of 65119384 is about 8069.6582331596. The cubic root of 65119384 is about 402.3185844480.

The spelling of 65119384 in words is "sixty-five million, one hundred nineteen thousand, three hundred eighty-four".