10115501049 has 20 divisors (see below), whose sum is σ = 15631876260. Its totient is φ = 6511125600.

The previous prime is 10115501021. The next prime is 10115501057. The reversal of 10115501049 is 94010551101.

10115501049 is a `hidden beast` number, since 1 + 0 + 1 + 1 + 550 + 104 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 8631710649 + 1483790400 = 92907^2 + 38520^2 .

It is not a de Polignac number, because 10115501049 - 2⁷ = 10115500921 is a prime.

It is a super-2 number, since 2×10115501049² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (10115501059) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2150802 + ... + 2155499.

It is an arithmetic number, because the mean of its divisors is an integer number (781593813).

Almost surely, 2^10115501049 is an apocalyptic number.

It is an amenable number.

10115501049 is a deficient number, since it is larger than the sum of its proper divisors (5516375211).

10115501049 is an equidigital number, since it uses as much as digits as its factorization.

10115501049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4306342 (or 4306333 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 27.

The spelling of 10115501049 in words is "ten billion, one hundred fifteen million, five hundred one thousand, forty-nine".