65119399638 has 16 divisors (see below), whose sum is σ = 133758767280. Its totient is φ = 21119805216.

The previous prime is 65119399633. The next prime is 65119399651. The reversal of 65119399638 is 83699391156.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65119399633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146665093 + ... + 146665536.

It is an arithmetic number, because the mean of its divisors is an integer number (8359922955).

Almost surely, 2^65119399638 is an apocalyptic number.

65119399638 is an abundant number, since it is smaller than the sum of its proper divisors (68639367642).

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

65119399638 is a wasteful number, since it uses less digits than its factorization.

65119399638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293330671.

The product of its digits is 9447840, while the sum is 60.

The spelling of 65119399638 in words is "sixty-five billion, one hundred nineteen million, three hundred ninety-nine thousand, six hundred thirty-eight".