261761443461106 has 32 divisors (see below), whose sum is σ = 399588742589760. Its totient is φ = 128568451752000.

The previous prime is 261761443461101. The next prime is 261761443461107. The reversal of 261761443461106 is 601164344167162.

It is not an unprimeable number, because it can be changed into a prime (261761443461101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2169047640 + ... + 2169168316.

It is an arithmetic number, because the mean of its divisors is an integer number (12487148205930).

Almost surely, 2^{261761443461106} is an apocalyptic number.

261761443461106 is a deficient number, since it is larger than the sum of its proper divisors (137827299128654).

261761443461106 is a wasteful number, since it uses less digits than its factorization.

261761443461106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134010.

The product of its (nonzero) digits is 3483648, while the sum is 52.

The spelling of 261761443461106 in words is "two hundred sixty-one trillion, seven hundred sixty-one billion, four hundred forty-three million, four hundred sixty-one thousand, one hundred six".