61661233586710 has 16 divisors (see below), whose sum is σ = 110997130427136. Its totient is φ = 24662957885568.

The previous prime is 61661233586699. The next prime is 61661233586741. The reversal of 61661233586710 is 1768533216616.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191774979 + ... + 192096238.

It is an arithmetic number, because the mean of its divisors is an integer number (6937320651696).

Almost surely, 2^{61661233586710} is an apocalyptic number.

61661233586710 is a deficient number, since it is larger than the sum of its proper divisors (49335896840426).

61661233586710 is a wasteful number, since it uses less digits than its factorization.

61661233586710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383887287.

The product of its (nonzero) digits is 6531840, while the sum is 55.

The spelling of 61661233586710 in words is "sixty-one trillion, six hundred sixty-one billion, two hundred thirty-three million, five hundred eighty-six thousand, seven hundred ten".