161126020266 has 32 divisors (see below), whose sum is σ = 336983182848. Its totient is φ = 51263485680.

The previous prime is 161126020249. The next prime is 161126020303. The reversal of 161126020266 is 662020621161.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1185640 + ... + 1314531.

It is an arithmetic number, because the mean of its divisors is an integer number (10530724464).

Almost surely, 2^161126020266 is an apocalyptic number.

161126020266 is an abundant number, since it is smaller than the sum of its proper divisors (175857162582).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161126020266 is a wasteful number, since it uses less digits than its factorization.

161126020266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2500666.

The product of its (nonzero) digits is 10368, while the sum is 33.

The spelling of 161126020266 in words is "one hundred sixty-one billion, one hundred twenty-six million, twenty thousand, two hundred sixty-six".