16155776668 has 12 divisors (see below), whose sum is σ = 29935703952. Its totient is φ = 7602718400.

The previous prime is 16155776629. The next prime is 16155776711. The reversal of 16155776668 is 86667755161.

It is a super-2 number, since 2×16155776668² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118792408 + ... + 118792543.

It is an arithmetic number, because the mean of its divisors is an integer number (2494641996).

Almost surely, 2^16155776668 is an apocalyptic number.

It is an amenable number.

16155776668 is a deficient number, since it is larger than the sum of its proper divisors (13779927284).

16155776668 is a wasteful number, since it uses less digits than its factorization.

16155776668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237584972 (or 237584970 counting only the distinct ones).

The product of its digits is 12700800, while the sum is 58.

The spelling of 16155776668 in words is "sixteen billion, one hundred fifty-five million, seven hundred seventy-six thousand, six hundred sixty-eight".