10099454561 has 4 divisors (see below), whose sum is σ = 11542233792. Its totient is φ = 8656675332.

The previous prime is 10099454531. The next prime is 10099454593. The reversal of 10099454561 is 16545499001.

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-10099454561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10099454501) 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, 721389605 + ... + 721389618.

It is an arithmetic number, because the mean of its divisors is an integer number (2885558448).

Almost surely, 2^10099454561 is an apocalyptic number.

It is an amenable number.

10099454561 is a deficient number, since it is larger than the sum of its proper divisors (1442779231).

10099454561 is an equidigital number, since it uses as much as digits as its factorization.

10099454561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1442779230.

The product of its (nonzero) digits is 194400, while the sum is 44.

The spelling of 10099454561 in words is "ten billion, ninety-nine million, four hundred fifty-four thousand, five hundred sixty-one".