1542354666 has 8 divisors (see below), whose sum is σ = 3084709344. Its totient is φ = 514118220.

The previous prime is 1542354661. The next prime is 1542354689. The reversal of 1542354666 is 6664532451.

It is a sphenic number, since it is the product of 3 distinct primes.

1542354666 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1542354661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128529550 + ... + 128529561.

It is an arithmetic number, because the mean of its divisors is an integer number (385588668).

Almost surely, 2^1542354666 is an apocalyptic number.

1542354666 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1542354666 is a wasteful number, since it uses less digits than its factorization.

1542354666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257059116.

The product of its digits is 518400, while the sum is 42.

The square root of 1542354666 is about 39272.8235043013. The cubic root of 1542354666 is about 1155.3886153184.

The spelling of 1542354666 in words is "one billion, five hundred forty-two million, three hundred fifty-four thousand, six hundred sixty-six".