161266528 has 24 divisors (see below), whose sum is σ = 334204920. Its totient is φ = 76389120.

The previous prime is 161266519. The next prime is 161266537. The reversal of 161266528 is 825662161.

161266528 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (161266519) and next prime (161266537).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132013 + ... + 133228.

It is an arithmetic number, because the mean of its divisors is an integer number (13925205).

Almost surely, 2^161266528 is an apocalyptic number.

It is an amenable number.

161266528 is an abundant number, since it is smaller than the sum of its proper divisors (172938392).

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

161266528 is a wasteful number, since it uses less digits than its factorization.

161266528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265270 (or 265262 counting only the distinct ones).

The product of its digits is 34560, while the sum is 37.

The square root of 161266528 is about 12699.0758718893. The cubic root of 161266528 is about 544.3122126491.

The spelling of 161266528 in words is "one hundred sixty-one million, two hundred sixty-six thousand, five hundred twenty-eight".