55679651966 has 4 divisors (see below), whose sum is σ = 83519477952. Its totient is φ = 27839825982.

The previous prime is 55679651891. The next prime is 55679652043. The reversal of 55679651966 is 66915697655.

55679651966 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×55679651966³ (a number of 33 digits) contains 333 as substring.

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, 13919912990 + ... + 13919912993.

It is an arithmetic number, because the mean of its divisors is an integer number (20879869488).

Almost surely, 2^55679651966 is an apocalyptic number.

55679651966 is a deficient number, since it is larger than the sum of its proper divisors (27839825986).

55679651966 is a wasteful number, since it uses less digits than its factorization.

55679651966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27839825985.

The product of its digits is 91854000, while the sum is 65.

The spelling of 55679651966 in words is "fifty-five billion, six hundred seventy-nine million, six hundred fifty-one thousand, nine hundred sixty-six".