101806440577 has 8 divisors (see below), whose sum is σ = 104767520000. Its totient is φ = 98856390384.

The previous prime is 101806440539. The next prime is 101806440581. The reversal of 101806440577 is 775044608101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 101806440577 - 2³⁵ = 67446702209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101806440077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2738577 + ... + 2775502.

It is an arithmetic number, because the mean of its divisors is an integer number (13095940000).

Almost surely, 2^101806440577 is an apocalyptic number.

It is an amenable number.

101806440577 is a deficient number, since it is larger than the sum of its proper divisors (2961079423).

101806440577 is an equidigital number, since it uses as much as digits as its factorization.

101806440577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5514615.

The product of its (nonzero) digits is 188160, while the sum is 43.

The spelling of 101806440577 in words is "one hundred one billion, eight hundred six million, four hundred forty thousand, five hundred seventy-seven".