61254845216 has 24 divisors (see below), whose sum is σ = 121789497564. Its totient is φ = 30324179200.

The previous prime is 61254845177. The next prime is 61254845233.

61254845216 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 51175488400 + 10079356816 = 226220^2 + 100396^2 .

It is a super-2 number, since 2×61254845216² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9473075 + ... + 9479538.

Almost surely, 2^61254845216 is an apocalyptic number.

It is an amenable number.

61254845216 is a deficient number, since it is larger than the sum of its proper divisors (60534652348).

61254845216 is a wasteful number, since it uses less digits than its factorization.

61254845216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18952724 (or 18952716 counting only the distinct ones).

The product of its digits is 460800, while the sum is 44.

The spelling of 61254845216 in words is "sixty-one billion, two hundred fifty-four million, eight hundred forty-five thousand, two hundred sixteen".