1401457566 has 8 divisors (see below), whose sum is σ = 2802915144. Its totient is φ = 467152520.

The previous prime is 1401457553. The next prime is 1401457583. The reversal of 1401457566 is 6657541041.

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

1401457566 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116788125 + ... + 116788136.

It is an arithmetic number, because the mean of its divisors is an integer number (350364393).

Almost surely, 2^1401457566 is an apocalyptic number.

1401457566 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.

1401457566 is a wasteful number, since it uses less digits than its factorization.

1401457566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233576266.

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 1401457566 is about 37436.0463457347. The cubic root of 1401457566 is about 1119.0770367061.

The spelling of 1401457566 in words is "one billion, four hundred one million, four hundred fifty-seven thousand, five hundred sixty-six".