66151264 has 24 divisors (see below), whose sum is σ = 133757568. Its totient is φ = 32181120.

The previous prime is 66151259. The next prime is 66151273. The reversal of 66151264 is 46215166.

66151264 = 985² + 986² + ... + 1048².

66151264 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 3 ways as a sum of consecutive naturals, for example, 26752 + ... + 29119.

It is an arithmetic number, because the mean of its divisors is an integer number (5573232).

Almost surely, 2^66151264 is an apocalyptic number.

It is an amenable number.

66151264 is an abundant number, since it is smaller than the sum of its proper divisors (67606304).

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

66151264 is a wasteful number, since it uses less digits than its factorization.

66151264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55918 (or 55910 counting only the distinct ones).

The product of its digits is 8640, while the sum is 31.

The square root of 66151264 is about 8133.3427322350. The cubic root of 66151264 is about 404.4325009108.

The spelling of 66151264 in words is "sixty-six million, one hundred fifty-one thousand, two hundred sixty-four".