661614106 has 8 divisors (see below), whose sum is σ = 997408800. Its totient is φ = 329144508.

The previous prime is 661614103. The next prime is 661614119. The reversal of 661614106 is 601416166.

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

It is not an unprimeable number, because it can be changed into a prime (661614101) 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, 830776 + ... + 831571.

It is an arithmetic number, because the mean of its divisors is an integer number (124676100).

Almost surely, 2^661614106 is an apocalyptic number.

661614106 is a deficient number, since it is larger than the sum of its proper divisors (335794694).

661614106 is a wasteful number, since it uses less digits than its factorization.

661614106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1662548.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 661614106 is about 25721.8604692584. The cubic root of 661614106 is about 871.3679567237.

The spelling of 661614106 in words is "six hundred sixty-one million, six hundred fourteen thousand, one hundred six".