101205436455161 has 4 divisors (see below), whose sum is σ = 101875671133824. Its totient is φ = 100535201776500.

The previous prime is 101205436455127. The next prime is 101205436455203. The reversal of 101205436455161 is 161554634502101.

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 a de Polignac number, because none of the positive numbers 2^k-101205436455161 is a prime.

It is a super-2 number, since 2×101205436455161² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101205438455161) 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, 335117339105 + ... + 335117339406.

It is an arithmetic number, because the mean of its divisors is an integer number (25468917783456).

Almost surely, 2^{101205436455161} is an apocalyptic number.

It is an amenable number.

101205436455161 is a deficient number, since it is larger than the sum of its proper divisors (670234678663).

101205436455161 is an equidigital number, since it uses as much as digits as its factorization.

101205436455161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670234678662.

The product of its (nonzero) digits is 432000, while the sum is 44.

The spelling of 101205436455161 in words is "one hundred one trillion, two hundred five billion, four hundred thirty-six million, four hundred fifty-five thousand, one hundred sixty-one".