85101151165561 has 4 divisors (see below), whose sum is σ = 85457222928000. Its totient is φ = 84745079403124.

The previous prime is 85101151165553. The next prime is 85101151165621. The reversal of 85101151165561 is 16556115110158.

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 85101151165561 - 2³ = 85101151165553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85101151162561) 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, 178035880861 + ... + 178035881338.

It is an arithmetic number, because the mean of its divisors is an integer number (21364305732000).

Almost surely, 2^{85101151165561} is an apocalyptic number.

It is an amenable number.

85101151165561 is a deficient number, since it is larger than the sum of its proper divisors (356071762439).

85101151165561 is a wasteful number, since it uses less digits than its factorization.

85101151165561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356071762438.

The product of its (nonzero) digits is 180000, while the sum is 46.

The spelling of 85101151165561 in words is "eighty-five trillion, one hundred one billion, one hundred fifty-one million, one hundred sixty-five thousand, five hundred sixty-one".