105542061641 has 4 divisors (see below), whose sum is σ = 105782476800. Its totient is φ = 105301646484.

The previous prime is 105542061533. The next prime is 105542061643. The reversal of 105542061641 is 146160245501.

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: 146160245501 = 18371 ⋅7956031.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105542061641 is a prime.

It is a super-2 number, since 2×105542061641² (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 (105542061643) 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, 120206921 + ... + 120207798.

It is an arithmetic number, because the mean of its divisors is an integer number (26445619200).

Almost surely, 2^105542061641 is an apocalyptic number.

It is an amenable number.

105542061641 is a deficient number, since it is larger than the sum of its proper divisors (240415159).

105542061641 is an equidigital number, since it uses as much as digits as its factorization.

105542061641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240415158.

The product of its (nonzero) digits is 28800, while the sum is 35.

The spelling of 105542061641 in words is "one hundred five billion, five hundred forty-two million, sixty-one thousand, six hundred forty-one".