66462080 has 64 divisors (see below), whose sum is σ = 160466400. Its totient is φ = 26320896.

The previous prime is 66462031. The next prime is 66462103. The reversal of 66462080 is 8026466.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71861 + ... + 72779.

Almost surely, 2^66462080 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66462080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80233200).

66462080 is an abundant number, since it is smaller than the sum of its proper divisors (94004320).

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

66462080 is a wasteful number, since it uses less digits than its factorization.

66462080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051 (or 1039 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 66462080 is about 8152.4278592331. The cubic root of 66462080 is about 405.0649288779.

The spelling of 66462080 in words is "sixty-six million, four hundred sixty-two thousand, eighty".