66501486 has 40 divisors (see below), whose sum is σ = 149497920. Its totient is φ = 22095072.

The previous prime is 66501481. The next prime is 66501493. The reversal of 66501486 is 68410566.

It is a self number, because there is not a number n which added to its sum of digits gives 66501486.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66501481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 77170 + ... + 78026.

It is an arithmetic number, because the mean of its divisors is an integer number (3737448).

Almost surely, 2^66501486 is an apocalyptic number.

66501486 is an abundant number, since it is smaller than the sum of its proper divisors (82996434).

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

66501486 is a wasteful number, since it uses less digits than its factorization.

66501486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1350 (or 1341 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 66501486 is about 8154.8443271469. The cubic root of 66501486 is about 405.1449686788.

The spelling of 66501486 in words is "sixty-six million, five hundred one thousand, four hundred eighty-six".