121664614 has 16 divisors (see below), whose sum is σ = 194948208. Its totient is φ = 56745472.

The previous prime is 121664591. The next prime is 121664633. The reversal of 121664614 is 416466121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11992 + ... + 19675.

It is an arithmetic number, because the mean of its divisors is an integer number (12184263).

Almost surely, 2^121664614 is an apocalyptic number.

121664614 is a deficient number, since it is larger than the sum of its proper divisors (73283594).

121664614 is a wasteful number, since it uses less digits than its factorization.

121664614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31799.

The product of its digits is 6912, while the sum is 31.

The square root of 121664614 is about 11030.1683577360. The cubic root of 121664614 is about 495.5126668255.

The spelling of 121664614 in words is "one hundred twenty-one million, six hundred sixty-four thousand, six hundred fourteen".