61016543 has 16 divisors (see below), whose sum is σ = 73920000. Its totient is φ = 49198752.

The previous prime is 61016513. The next prime is 61016563. The reversal of 61016543 is 34561016.

It is not a de Polignac number, because 61016543 - 2¹⁰ = 61015519 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61016513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18278 + ... + 21356.

It is an arithmetic number, because the mean of its divisors is an integer number (4620000).

Almost surely, 2^61016543 is an apocalyptic number.

61016543 is a deficient number, since it is larger than the sum of its proper divisors (12903457).

61016543 is a wasteful number, since it uses less digits than its factorization.

61016543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3254.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 61016543 is about 7811.3086611656. The cubic root of 61016543 is about 393.6853005981.

Adding to 61016543 its reverse (34561016), we get a palindrome (95577559).

The spelling of 61016543 in words is "sixty-one million, sixteen thousand, five hundred forty-three".