61545016263 has 16 divisors (see below), whose sum is σ = 82326398976. Its totient is φ = 40897016160.

The previous prime is 61545016223. The next prime is 61545016331. The reversal of 61545016263 is 36261054516.

It is not a de Polignac number, because 61545016263 - 2⁶ = 61545016199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61545016223) 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, 1283506 + ... + 1330592.

It is an arithmetic number, because the mean of its divisors is an integer number (5145399936).

Almost surely, 2^61545016263 is an apocalyptic number.

61545016263 is a deficient number, since it is larger than the sum of its proper divisors (20781382713).

61545016263 is a wasteful number, since it uses less digits than its factorization.

61545016263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48494.

The product of its (nonzero) digits is 129600, while the sum is 39.

The spelling of 61545016263 in words is "sixty-one billion, five hundred forty-five million, sixteen thousand, two hundred sixty-three".