66546446502 has 16 divisors (see below), whose sum is σ = 133117383600. Its totient is φ = 22178067072.

The previous prime is 66546446489. The next prime is 66546446509. The reversal of 66546446502 is 20564464566.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66546446509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 985023 + ... + 1050410.

It is an arithmetic number, because the mean of its divisors is an integer number (8319836475).

Almost surely, 2^66546446502 is an apocalyptic number.

66546446502 is an abundant number, since it is smaller than the sum of its proper divisors (66570937098).

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

66546446502 is a wasteful number, since it uses less digits than its factorization.

66546446502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2040887.

The product of its (nonzero) digits is 4147200, while the sum is 48.

The spelling of 66546446502 in words is "sixty-six billion, five hundred forty-six million, four hundred forty-six thousand, five hundred two".