461401771661 has 8 divisors (see below), whose sum is σ = 474144339864. Its totient is φ = 448673532480.

The previous prime is 461401771631. The next prime is 461401771703. The reversal of 461401771661 is 166177104164.

It can be written as a sum of positive squares in 4 ways, for example, as 50945004100 + 410456767561 = 225710^2 + 640669^2 .

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 461401771661 - 2¹⁰ = 461401770637 is a prime.

It is a super-3 number, since 3×461401771661³ (a number of 36 digits) contains 333 as substring.

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 (461401771601) 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, 3516950 + ... + 3645783.

It is an arithmetic number, because the mean of its divisors is an integer number (59268042483).

Almost surely, 2^461401771661 is an apocalyptic number.

It is an amenable number.

461401771661 is a deficient number, since it is larger than the sum of its proper divisors (12742568203).

461401771661 is a wasteful number, since it uses less digits than its factorization.

461401771661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7164511.

The product of its (nonzero) digits is 169344, while the sum is 44.

The spelling of 461401771661 in words is "four hundred sixty-one billion, four hundred one million, seven hundred seventy-one thousand, six hundred sixty-one".