161266276726 has 8 divisors (see below), whose sum is σ = 250240774320. Its totient is φ = 77852685288.

The previous prime is 161266276723. The next prime is 161266276733. The reversal of 161266276726 is 627672662161.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161266276723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1390226466 + ... + 1390226581.

It is an arithmetic number, because the mean of its divisors is an integer number (31280096790).

Almost surely, 2^161266276726 is an apocalyptic number.

161266276726 is a deficient number, since it is larger than the sum of its proper divisors (88974497594).

161266276726 is a wasteful number, since it uses less digits than its factorization.

161266276726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2780453078.

The product of its digits is 3048192, while the sum is 52.

The spelling of 161266276726 in words is "one hundred sixty-one billion, two hundred sixty-six million, two hundred seventy-six thousand, seven hundred twenty-six".