10506543554 has 16 divisors (see below), whose sum is σ = 17147083128. Its totient is φ = 4799181312.

The previous prime is 10506543533. The next prime is 10506543557. The reversal of 10506543554 is 45534560501.

It can be written as a sum of positive squares in 4 ways, for example, as 4163217529 + 6343326025 = 64523^2 + 79645^2 .

It is a super-2 number, since 2×10506543554² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10506543557) 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, 2080457 + ... + 2085500.

Almost surely, 2^10506543554 is an apocalyptic number.

10506543554 is a deficient number, since it is larger than the sum of its proper divisors (6640539574).

10506543554 is a wasteful number, since it uses less digits than its factorization.

10506543554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4166069.

The product of its (nonzero) digits is 180000, while the sum is 38.

The spelling of 10506543554 in words is "ten billion, five hundred six million, five hundred forty-three thousand, five hundred fifty-four".