661362098102 has 8 divisors (see below), whose sum is σ = 992046946800. Its totient is φ = 330679782504.

The previous prime is 661362098083. The next prime is 661362098119. The reversal of 661362098102 is 201890263166.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 286799 + ... + 1185317.

It is an arithmetic number, because the mean of its divisors is an integer number (124005868350).

Almost surely, 2^661362098102 is an apocalyptic number.

661362098102 is a deficient number, since it is larger than the sum of its proper divisors (330684848698).

661362098102 is a wasteful number, since it uses less digits than its factorization.

661362098102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1266550.

The product of its (nonzero) digits is 186624, while the sum is 44.

The spelling of 661362098102 in words is "six hundred sixty-one billion, three hundred sixty-two million, ninety-eight thousand, one hundred two".