161451064 has 16 divisors (see below), whose sum is σ = 303066720. Its totient is φ = 80633280.

The previous prime is 161451049. The next prime is 161451067. The reversal of 161451064 is 460154161.

161451064 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161451067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3789 + ... + 18364.

It is an arithmetic number, because the mean of its divisors is an integer number (18941670).

Almost surely, 2^161451064 is an apocalyptic number.

It is an amenable number.

161451064 is a deficient number, since it is larger than the sum of its proper divisors (141615656).

161451064 is a wasteful number, since it uses less digits than its factorization.

161451064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23070 (or 23066 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 161451064 is about 12706.3395200978. The cubic root of 161451064 is about 544.5197508803.

The spelling of 161451064 in words is "one hundred sixty-one million, four hundred fifty-one thousand, sixty-four".