65119988991156 has 192 divisors, whose sum is σ = 172873725050880. Its totient is φ = 18897632087040.

The previous prime is 65119988991061. The next prime is 65119988991203.

65119988991156 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×65119988991156² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1980096945 + ... + 1980129831.

It is an arithmetic number, because the mean of its divisors is an integer number (900383984640).

Almost surely, 2^{65119988991156} is an apocalyptic number.

65119988991156 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65119988991156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86436862525440).

65119988991156 is an abundant number, since it is smaller than the sum of its proper divisors (107753736059724).

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

65119988991156 is a wasteful number, since it uses less digits than its factorization.

65119988991156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37134 (or 37132 counting only the distinct ones).

The product of its digits is 377913600, while the sum is 78.

The spelling of 65119988991156 in words is "sixty-five trillion, one hundred nineteen billion, nine hundred eighty-eight million, nine hundred ninety-one thousand, one hundred fifty-six".