101678605081 has 4 divisors (see below), whose sum is σ = 101684365072. Its totient is φ = 101672845092.

The previous prime is 101678605037. The next prime is 101678605097. The reversal of 101678605081 is 180506876101.

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 101678605081 - 2²⁵ = 101645050649 is a prime.

It is a super-2 number, since 2×101678605081² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101678605681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2853435 + ... + 2888848.

It is an arithmetic number, because the mean of its divisors is an integer number (25421091268).

Almost surely, 2^101678605081 is an apocalyptic number.

It is an amenable number.

101678605081 is a deficient number, since it is larger than the sum of its proper divisors (5759991).

101678605081 is an equidigital number, since it uses as much as digits as its factorization.

101678605081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5759990.

The product of its (nonzero) digits is 80640, while the sum is 43.

The spelling of 101678605081 in words is "one hundred one billion, six hundred seventy-eight million, six hundred five thousand, eighty-one".