66098454 has 32 divisors (see below), whose sum is σ = 139536000. Its totient is φ = 20816064.

The previous prime is 66098449. The next prime is 66098503. The reversal of 66098454 is 45489066.

66098454 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 an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64357 + ... + 65375.

It is an arithmetic number, because the mean of its divisors is an integer number (4360500).

Almost surely, 2^66098454 is an apocalyptic number.

66098454 is an abundant number, since it is smaller than the sum of its proper divisors (73437546).

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

66098454 is a wasteful number, since it uses less digits than its factorization.

66098454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1612.

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 66098454 is about 8130.0955713940. The cubic root of 66098454 is about 404.3248498238.

The spelling of 66098454 in words is "sixty-six million, ninety-eight thousand, four hundred fifty-four".