101565116155501 has 4 divisors (see below), whose sum is σ = 101580045622272. Its totient is φ = 101550186688732.

The previous prime is 101565116155487. The next prime is 101565116155513. The reversal of 101565116155501 is 105551611565101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 101565116155501 - 2⁹ = 101565116154989 is a prime.

It is a super-2 number, since 2×101565116155501² (a number of 29 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 (101565116155201) 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, 7464723181 + ... + 7464736786.

It is an arithmetic number, because the mean of its divisors is an integer number (25395011405568).

Almost surely, 2^{101565116155501} is an apocalyptic number.

It is an amenable number.

101565116155501 is a deficient number, since it is larger than the sum of its proper divisors (14929466771).

101565116155501 is an equidigital number, since it uses as much as digits as its factorization.

101565116155501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14929466770.

The product of its (nonzero) digits is 112500, while the sum is 43.

The spelling of 101565116155501 in words is "one hundred one trillion, five hundred sixty-five billion, one hundred sixteen million, one hundred fifty-five thousand, five hundred one".