11650105501 has 2 divisors, whose sum is σ = 11650105502. Its totient is φ = 11650105500.

The previous prime is 11650105499. The next prime is 11650105561. The reversal of 11650105501 is 10550105611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10070122500 + 1579983001 = 100350^2 + 39749^2 .

It is a cyclic number.

It is not a de Polignac number, because 11650105501 - 2¹ = 11650105499 is a prime.

It is a super-2 number, since 2×11650105501² (a number of 21 digits) contains 22 as substring.

Together with 11650105499, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11650105561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5825052750 + 5825052751.

It is an arithmetic number, because the mean of its divisors is an integer number (5825052751).

Almost surely, 2^11650105501 is an apocalyptic number.

It is an amenable number.

11650105501 is a deficient number, since it is larger than the sum of its proper divisors (1).

11650105501 is an equidigital number, since it uses as much as digits as its factorization.

11650105501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 750, while the sum is 25.

The spelling of 11650105501 in words is "eleven billion, six hundred fifty million, one hundred five thousand, five hundred one".