66151254 has 32 divisors (see below), whose sum is σ = 142791264. Its totient is φ = 20309760.

The previous prime is 66151237. The next prime is 66151259. The reversal of 66151254 is 45215166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66151259) 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, 63522 + ... + 64554.

It is an arithmetic number, because the mean of its divisors is an integer number (4462227).

Almost surely, 2^66151254 is an apocalyptic number.

66151254 is an abundant number, since it is smaller than the sum of its proper divisors (76640010).

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

66151254 is a wasteful number, since it uses less digits than its factorization.

66151254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1872.

The product of its digits is 7200, while the sum is 30.

The square root of 66151254 is about 8133.3421174816. The cubic root of 66151254 is about 404.4324805316.

It can be divided in two parts, 661 and 51254, that added together give a palindrome (51915).

The spelling of 66151254 in words is "sixty-six million, one hundred fifty-one thousand, two hundred fifty-four".