610302465120661 has 8 divisors (see below), whose sum is σ = 626449081230648. Its totient is φ = 594353967000000.

The previous prime is 610302465120641. The next prime is 610302465120679. The reversal of 610302465120661 is 166021564203016.

It can be written as a sum of positive squares in 4 ways, for example, as 152693101179025 + 457609363941636 = 12356905^2 + 21391806^2 .

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 610302465120661 - 2³⁵ = 610268105382293 is a prime.

It is a super-3 number, since 3×610302465120661³ (a number of 45 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (610302465120641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49529491090 + ... + 49529503411.

It is an arithmetic number, because the mean of its divisors is an integer number (78306135153831).

Almost surely, 2^{610302465120661} is an apocalyptic number.

610302465120661 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

610302465120661 is a deficient number, since it is larger than the sum of its proper divisors (16146616109987).

610302465120661 is a wasteful number, since it uses less digits than its factorization.

610302465120661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99058994663.

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 610302465120661 in words is "six hundred ten trillion, three hundred two billion, four hundred sixty-five million, one hundred twenty thousand, six hundred sixty-one".