16233604477 has 4 divisors (see below), whose sum is σ = 16240092640. Its totient is φ = 16227116316.

The previous prime is 16233604441. The next prime is 16233604483. The reversal of 16233604477 is 77440633261.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16233604477 - 2²³ = 16225215869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16233604417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3240327 + ... + 3245332.

It is an arithmetic number, because the mean of its divisors is an integer number (4060023160).

Almost surely, 2^16233604477 is an apocalyptic number.

It is an amenable number.

16233604477 is a deficient number, since it is larger than the sum of its proper divisors (6488163).

16233604477 is an equidigital number, since it uses as much as digits as its factorization.

16233604477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6488162.

The product of its (nonzero) digits is 508032, while the sum is 43.

The spelling of 16233604477 in words is "sixteen billion, two hundred thirty-three million, six hundred four thousand, four hundred seventy-seven".