16312666455 has 24 divisors (see below), whose sum is σ = 29938542192. Its totient is φ = 8188318464.

The previous prime is 16312666439. The next prime is 16312666493. The reversal of 16312666455 is 55466621361.

It is not a de Polignac number, because 16312666455 - 2⁴ = 16312666439 is a prime.

It is a super-2 number, since 2×16312666455² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 16312666455.

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 23 ways as a sum of consecutive naturals, for example, 10661109 + ... + 10662638.

It is an arithmetic number, because the mean of its divisors is an integer number (1247439258).

Almost surely, 2^16312666455 is an apocalyptic number.

16312666455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16312666455 is a deficient number, since it is larger than the sum of its proper divisors (13625875737).

16312666455 is a wasteful number, since it uses less digits than its factorization.

16312666455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21323775 (or 21323772 counting only the distinct ones).

The product of its digits is 777600, while the sum is 45.

The spelling of 16312666455 in words is "sixteen billion, three hundred twelve million, six hundred sixty-six thousand, four hundred fifty-five".