10105105550491 has 8 divisors (see below), whose sum is σ = 11551021871840. Its totient is φ = 8659771682688.

The previous prime is 10105105550489. The next prime is 10105105550531. The reversal of 10105105550491 is 19405550150101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10105105550491 - 2¹ = 10105105550489 is a prime.

It is a super-2 number, since 2×10105105550491² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10105105550491.

It is not an unprimeable number, because it can be changed into a prime (10105105550291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145576206 + ... + 145645603.

It is an arithmetic number, because the mean of its divisors is an integer number (1443877733980).

Almost surely, 2^{10105105550491} is an apocalyptic number.

10105105550491 is a deficient number, since it is larger than the sum of its proper divisors (1445916321349).

10105105550491 is an equidigital number, since it uses as much as digits as its factorization.

10105105550491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291226773.

The product of its (nonzero) digits is 22500, while the sum is 37.

The spelling of 10105105550491 in words is "ten trillion, one hundred five billion, one hundred five million, five hundred fifty thousand, four hundred ninety-one".