105053715065981 has 4 divisors (see below), whose sum is σ = 114604052799264. Its totient is φ = 95503377332700.

The previous prime is 105053715065977. The next prime is 105053715066037. The reversal of 105053715065981 is 189560517350501.

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 105053715065981 - 2² = 105053715065977 is a prime.

It is a super-2 number, since 2×105053715065981² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105053715065941) 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, 4775168866625 + ... + 4775168866646.

It is an arithmetic number, because the mean of its divisors is an integer number (28651013199816).

Almost surely, 2^{105053715065981} is an apocalyptic number.

105053715065981 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

105053715065981 is a deficient number, since it is larger than the sum of its proper divisors (9550337733283).

105053715065981 is an equidigital number, since it uses as much as digits as its factorization.

105053715065981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9550337733282.

The product of its (nonzero) digits is 5670000, while the sum is 56.

The spelling of 105053715065981 in words is "one hundred five trillion, fifty-three billion, seven hundred fifteen million, sixty-five thousand, nine hundred eighty-one".