10515656434 has 4 divisors (see below), whose sum is σ = 15773484654. Its totient is φ = 5257828216.

The previous prime is 10515656429. The next prime is 10515656443. The reversal of 10515656434 is 43465651501.

It is a happy number.

10515656434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 10129416025 + 386240409 = 100645^2 + 19653^2 .

It is a super-2 number, since 2×10515656434² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2628914107 + ... + 2628914110.

Almost surely, 2^10515656434 is an apocalyptic number.

10515656434 is a deficient number, since it is larger than the sum of its proper divisors (5257828220).

10515656434 is an equidigital number, since it uses as much as digits as its factorization.

10515656434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5257828219.

The product of its (nonzero) digits is 216000, while the sum is 40.

The spelling of 10515656434 in words is "ten billion, five hundred fifteen million, six hundred fifty-six thousand, four hundred thirty-four".