61536585503 has 8 divisors (see below), whose sum is σ = 62701691328. Its totient is φ = 60371629344.

The previous prime is 61536585449. The next prime is 61536585541. The reversal of 61536585503 is 30558563516.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61536585503 - 2¹⁴ = 61536569119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61536585403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1139450 + ... + 1192232.

It is an arithmetic number, because the mean of its divisors is an integer number (7837711416).

Almost surely, 2^61536585503 is an apocalyptic number.

61536585503 is a deficient number, since it is larger than the sum of its proper divisors (1165105825).

61536585503 is a wasteful number, since it uses less digits than its factorization.

61536585503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74833.

The product of its (nonzero) digits is 1620000, while the sum is 47.

The spelling of 61536585503 in words is "sixty-one billion, five hundred thirty-six million, five hundred eighty-five thousand, five hundred three".