61103153259 has 12 divisors (see below), whose sum is σ = 88428874456. Its totient is φ = 40657544352.

The previous prime is 61103153173. The next prime is 61103153299. The reversal of 61103153259 is 95235130116.

It is a happy number.

61103153259 is a `hidden beast` number, since 6 + 1 + 10 + 315 + 325 + 9 = 666.

It is not a de Polignac number, because 61103153259 - 2⁷ = 61103153131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61103153299) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6485962 + ... + 6495375.

Almost surely, 2^61103153259 is an apocalyptic number.

61103153259 is a deficient number, since it is larger than the sum of its proper divisors (27325721197).

61103153259 is a wasteful number, since it uses less digits than its factorization.

61103153259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12981866 (or 12981863 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 36.

The spelling of 61103153259 in words is "sixty-one billion, one hundred three million, one hundred fifty-three thousand, two hundred fifty-nine".