23555416545 has 32 divisors (see below), whose sum is σ = 41883834240. Its totient is φ = 12560627520.

The previous prime is 23555416543. The next prime is 23555416553. The reversal of 23555416545 is 54561455532.

23555416545 is a `hidden beast` number, since 2 + 3 + 5 + 5 + 541 + 65 + 45 = 666.

It is not a de Polignac number, because 23555416545 - 2¹ = 23555416543 is a prime.

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 23555416545.

It is not an unprimeable number, because it can be changed into a prime (23555416541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 961387 + ... + 985583.

It is an arithmetic number, because the mean of its divisors is an integer number (1308869820).

Almost surely, 2^23555416545 is an apocalyptic number.

It is an amenable number.

23555416545 is a deficient number, since it is larger than the sum of its proper divisors (18328417695).

23555416545 is a wasteful number, since it uses less digits than its factorization.

23555416545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31422 (or 31416 counting only the distinct ones).

The product of its digits is 1800000, while the sum is 45.

The spelling of 23555416545 in words is "twenty-three billion, five hundred fifty-five million, four hundred sixteen thousand, five hundred forty-five".