65155376445140 has 192 divisors, whose sum is σ = 144580602765312. Its totient is φ = 24629565542400.

The previous prime is 65155376445121. The next prime is 65155376445167. The reversal of 65155376445140 is 4154467355156.

It is a happy number.

It is a hoax number, since the sum of its digits (56) coincides with the sum of the digits of its distinct prime factors.

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, 10623733514 + ... + 10623739646.

It is an arithmetic number, because the mean of its divisors is an integer number (753023972736).

Almost surely, 2^{65155376445140} 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 65155376445140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72290301382656).

65155376445140 is an abundant number, since it is smaller than the sum of its proper divisors (79425226320172).

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

65155376445140 is a wasteful number, since it uses less digits than its factorization.

65155376445140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7690 (or 7688 counting only the distinct ones).

The product of its (nonzero) digits is 30240000, while the sum is 56.

The spelling of 65155376445140 in words is "sixty-five trillion, one hundred fifty-five billion, three hundred seventy-six million, four hundred forty-five thousand, one hundred forty".