66675542 has 16 divisors (see below), whose sum is σ = 102795792. Its totient is φ = 32417280.

The previous prime is 66675533. The next prime is 66675559. The reversal of 66675542 is 24557666.

It is a self number, because there is not a number n which added to its sum of digits gives 66675542.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19118 + ... + 22334.

It is an arithmetic number, because the mean of its divisors is an integer number (6424737).

Almost surely, 2^66675542 is an apocalyptic number.

66675542 is a deficient number, since it is larger than the sum of its proper divisors (36120250).

66675542 is a wasteful number, since it uses less digits than its factorization.

66675542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3503.

The product of its digits is 302400, while the sum is 41.

The square root of 66675542 is about 8165.5092921385. The cubic root of 66675542 is about 405.4981260965.

The spelling of 66675542 in words is "sixty-six million, six hundred seventy-five thousand, five hundred forty-two".