161266463260 has 48 divisors (see below), whose sum is σ = 387062807040. Its totient is φ = 55288031040.

The previous prime is 161266463201. The next prime is 161266463269. The reversal of 161266463260 is 62364662161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161266463269) 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, 3844681 + ... + 3886399.

It is an arithmetic number, because the mean of its divisors is an integer number (8063808480).

Almost surely, 2^161266463260 is an apocalyptic number.

161266463260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161266463260 is an abundant number, since it is smaller than the sum of its proper divisors (225796343780).

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

161266463260 is a wasteful number, since it uses less digits than its factorization.

161266463260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69346 (or 69344 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 43.

The spelling of 161266463260 in words is "one hundred sixty-one billion, two hundred sixty-six million, four hundred sixty-three thousand, two hundred sixty".