103527665561 has 4 divisors (see below), whose sum is σ = 103704033552. Its totient is φ = 103351297572.

The previous prime is 103527665477. The next prime is 103527665581. The reversal of 103527665561 is 165566725301.

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, and also an emirpimes, since its reverse is a distinct semiprime: 165566725301 = 47 ⋅3522696283.

It is a cyclic number.

It is not a de Polignac number, because 103527665561 - 2¹⁴ = 103527649177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103527665581) 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, 88183115 + ... + 88184288.

It is an arithmetic number, because the mean of its divisors is an integer number (25926008388).

Almost surely, 2^103527665561 is an apocalyptic number.

It is an amenable number.

103527665561 is a deficient number, since it is larger than the sum of its proper divisors (176367991).

103527665561 is an equidigital number, since it uses as much as digits as its factorization.

103527665561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176367990.

The product of its (nonzero) digits is 1134000, while the sum is 47.

The spelling of 103527665561 in words is "one hundred three billion, five hundred twenty-seven million, six hundred sixty-five thousand, five hundred sixty-one".