123665551414 has 16 divisors (see below), whose sum is σ = 186850636560. Its totient is φ = 61382090880.

The previous prime is 123665551409. The next prime is 123665551459. The reversal of 123665551414 is 414155566321.

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, 5346354 + ... + 5369434.

It is an arithmetic number, because the mean of its divisors is an integer number (11678164785).

Almost surely, 2^123665551414 is an apocalyptic number.

123665551414 is a deficient number, since it is larger than the sum of its proper divisors (63185085146).

123665551414 is a wasteful number, since it uses less digits than its factorization.

123665551414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42495.

The product of its digits is 432000, while the sum is 43.

The spelling of 123665551414 in words is "one hundred twenty-three billion, six hundred sixty-five million, five hundred fifty-one thousand, four hundred fourteen".