10561060499991 has 8 divisors (see below), whose sum is σ = 14121994445184. Its totient is φ = 7020416777400.

The previous prime is 10561060499909. The next prime is 10561060499999. The reversal of 10561060499991 is 19999406016501.

It is a happy number.

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

It is not a de Polignac number, because 10561060499991 - 2¹⁴ = 10561060483607 is a prime.

It is a super-2 number, since 2×10561060499991² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10561060499999) 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, 5072554435 + ... + 5072556516.

It is an arithmetic number, because the mean of its divisors is an integer number (1765249305648).

Almost surely, 2^{10561060499991} is an apocalyptic number.

10561060499991 is a deficient number, since it is larger than the sum of its proper divisors (3560933945193).

10561060499991 is a wasteful number, since it uses less digits than its factorization.

10561060499991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10145111301.

The product of its (nonzero) digits is 4723920, while the sum is 60.

The spelling of 10561060499991 in words is "ten trillion, five hundred sixty-one billion, sixty million, four hundred ninety-nine thousand, nine hundred ninety-one".