61506102216389 has 8 divisors (see below), whose sum is σ = 61573372382112. Its totient is φ = 61438848685200.

The previous prime is 61506102216353. The next prime is 61506102216511. The reversal of 61506102216389 is 98361220160516.

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 61506102216389 - 2⁸ = 61506102216133 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61506102212389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3247607 + ... + 11556779.

It is an arithmetic number, because the mean of its divisors is an integer number (7696671547764).

Almost surely, 2^{61506102216389} is an apocalyptic number.

It is an amenable number.

61506102216389 is a deficient number, since it is larger than the sum of its proper divisors (67270165723).

61506102216389 is a wasteful number, since it uses less digits than its factorization.

61506102216389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8317267.

The product of its (nonzero) digits is 933120, while the sum is 50.

The spelling of 61506102216389 in words is "sixty-one trillion, five hundred six billion, one hundred two million, two hundred sixteen thousand, three hundred eighty-nine".