616654346212466 has 8 divisors (see below), whose sum is σ = 949981019840940. Its totient is φ = 299994006265488.

The previous prime is 616654346212459. The next prime is 616654346212529. The reversal of 616654346212466 is 664212643456616.

It can be written as a sum of positive squares in 2 ways, for example, as 578365415494441 + 38288930718025 = 24049229^2 + 6187805^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×616654346212466² (a number of 30 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 616654346212399 and 616654346212408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4166583420281 + ... + 4166583420428.

Almost surely, 2^{616654346212466} is an apocalyptic number.

616654346212466 is a deficient number, since it is larger than the sum of its proper divisors (333326673628474).

616654346212466 is a wasteful number, since it uses less digits than its factorization.

616654346212466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8333166840748.

The product of its digits is 179159040, while the sum is 62.

The spelling of 616654346212466 in words is "six hundred sixteen trillion, six hundred fifty-four billion, three hundred forty-six million, two hundred twelve thousand, four hundred sixty-six".