66612354 has 16 divisors (see below), whose sum is σ = 135050592. Its totient is φ = 21899808.

The previous prime is 66612349. The next prime is 66612367. The reversal of 66612354 is 45321666.

66612354 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon 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 7 ways as a sum of consecutive naturals, for example, 75604 + ... + 76479.

It is an arithmetic number, because the mean of its divisors is an integer number (8440662).

Almost surely, 2^66612354 is an apocalyptic number.

66612354 is an abundant number, since it is smaller than the sum of its proper divisors (68438238).

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

66612354 is a wasteful number, since it uses less digits than its factorization.

66612354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152161.

The product of its digits is 25920, while the sum is 33.

The square root of 66612354 is about 8161.6391735974. The cubic root of 66612354 is about 405.3699895854.

It can be divided in two parts, 66612 and 354, that added together give a palindrome (66966).

The spelling of 66612354 in words is "sixty-six million, six hundred twelve thousand, three hundred fifty-four".