61650216441 has 18 divisors (see below), whose sum is σ = 97881750330. Its totient is φ = 37363766880.

The previous prime is 61650216413. The next prime is 61650216469. The reversal of 61650216441 is 14461205616.

61650216441 is a `hidden beast` number, since 6 + 1 + 6 + 5 + 0 + 2 + 1 + 644 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (61650216413) and next prime (61650216469).

It can be written as a sum of positive squares in only one way, i.e., 60361119225 + 1289097216 = 245685^2 + 35904^2 .

It is not a de Polignac number, because 61650216441 - 2⁹ = 61650215929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61650216396 and 61650216405.

It is not an unprimeable number, because it can be changed into a prime (61650216841) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 28304796 + ... + 28306973.

Almost surely, 2^61650216441 is an apocalyptic number.

It is an amenable number.

61650216441 is a deficient number, since it is larger than the sum of its proper divisors (36231533889).

61650216441 is a wasteful number, since it uses less digits than its factorization.

61650216441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56611797 (or 56611783 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The spelling of 61650216441 in words is "sixty-one billion, six hundred fifty million, two hundred sixteen thousand, four hundred forty-one".