16368458477 has 12 divisors (see below), whose sum is σ = 19047597660. Its totient is φ = 14025142656.

The previous prime is 16368458473. The next prime is 16368458479. The reversal of 16368458477 is 77485486361.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1875669481 + 14492788996 = 43309^2 + 120386^2 .

It is not a de Polignac number, because 16368458477 - 2² = 16368458473 is a prime.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16368458473) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 84299 + ... + 199607.

It is an arithmetic number, because the mean of its divisors is an integer number (1587299805).

Almost surely, 2^16368458477 is an apocalyptic number.

It is an amenable number.

16368458477 is a deficient number, since it is larger than the sum of its proper divisors (2679139183).

16368458477 is a wasteful number, since it uses less digits than its factorization.

16368458477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118220 (or 118213 counting only the distinct ones).

The product of its digits is 27095040, while the sum is 59.

The spelling of 16368458477 in words is "sixteen billion, three hundred sixty-eight million, four hundred fifty-eight thousand, four hundred seventy-seven".