61626165672959 has 4 divisors (see below), whose sum is σ = 61626185319816. Its totient is φ = 61626146026104.

The previous prime is 61626165672923. The next prime is 61626165672977. The reversal of 61626165672959 is 95927656162616.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61626165672959 - 2²⁸ = 61625897237503 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61626165672892 and 61626165672901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61626165672259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3946364 + ... + 11782449.

It is an arithmetic number, because the mean of its divisors is an integer number (15406546329954).

Almost surely, 2^{61626165672959} is an apocalyptic number.

61626165672959 is a deficient number, since it is larger than the sum of its proper divisors (19646857).

61626165672959 is a wasteful number, since it uses less digits than its factorization.

61626165672959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19646856.

The product of its digits is 440899200, while the sum is 71.

The spelling of 61626165672959 in words is "sixty-one trillion, six hundred twenty-six billion, one hundred sixty-five million, six hundred seventy-two thousand, nine hundred fifty-nine".