65151550111 has 4 divisors (see below), whose sum is σ = 65152532224. Its totient is φ = 65150568000.

The previous prime is 65151550103. The next prime is 65151550127. The reversal of 65151550111 is 11105515156.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65151550111 - 2³ = 65151550103 is a prime.

It is a super-2 number, since 2×65151550111² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65151550141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 383730 + ... + 526831.

It is an arithmetic number, because the mean of its divisors is an integer number (16288133056).

Almost surely, 2^65151550111 is an apocalyptic number.

65151550111 is a deficient number, since it is larger than the sum of its proper divisors (982113).

65151550111 is an equidigital number, since it uses as much as digits as its factorization.

65151550111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 982112.

The product of its (nonzero) digits is 3750, while the sum is 31.

The spelling of 65151550111 in words is "sixty-five billion, one hundred fifty-one million, five hundred fifty thousand, one hundred eleven".