1663614094 has 4 divisors (see below), whose sum is σ = 2495421144. Its totient is φ = 831807046.

The previous prime is 1663614061. The next prime is 1663614107. The reversal of 1663614094 is 4904163661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4904163661 = 23 ⋅213224507.

It is a super-2 number, since 2×1663614094² = 5535223707510881672, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 415903522 + ... + 415903525.

It is an arithmetic number, because the mean of its divisors is an integer number (623855286).

Almost surely, 2^1663614094 is an apocalyptic number.

1663614094 is a deficient number, since it is larger than the sum of its proper divisors (831807050).

1663614094 is an equidigital number, since it uses as much as digits as its factorization.

1663614094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 831807049.

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 1663614094 is about 40787.4256848848. The cubic root of 1663614094 is about 1184.9068141099.

The spelling of 1663614094 in words is "one billion, six hundred sixty-three million, six hundred fourteen thousand, ninety-four".