1566945094 has 32 divisors (see below), whose sum is σ = 2778997536. Its totient is φ = 653253120.

The previous prime is 1566945049. The next prime is 1566945109. The reversal of 1566945094 is 4905496651.

It is a super-2 number, since 2×1566945094² = 4910633855221337672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27454 + ... + 62350.

It is an arithmetic number, because the mean of its divisors is an integer number (86843673).

Almost surely, 2^1566945094 is an apocalyptic number.

1566945094 is a deficient number, since it is larger than the sum of its proper divisors (1212052442).

1566945094 is a wasteful number, since it uses less digits than its factorization.

1566945094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35080.

The product of its (nonzero) digits is 1166400, while the sum is 49.

The square root of 1566945094 is about 39584.6573055774. The cubic root of 1566945094 is about 1161.4965558274.

The spelling of 1566945094 in words is "one billion, five hundred sixty-six million, nine hundred forty-five thousand, ninety-four".