45555321204 has 18 divisors (see below), whose sum is σ = 115153728690. Its totient is φ = 15185107056.

The previous prime is 45555321193. The next prime is 45555321211. The reversal of 45555321204 is 40212355554.

45555321204 is a `hidden beast` number, since 455 + 55 + 32 + 120 + 4 = 666.

45555321204 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 45070440804 + 484880400 = 212298^2 + 22020^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×45555321204² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1265425589 = 45555321204 / (4 + 5 + 5 + 5 + 5 + 3 + 2 + 1 + 2 + 0 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 632712759 + ... + 632712830.

Almost surely, 2^45555321204 is an apocalyptic number.

It is an amenable number.

45555321204 is an abundant number, since it is smaller than the sum of its proper divisors (69598407486).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45555321204 is a wasteful number, since it uses less digits than its factorization.

45555321204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1265425599 (or 1265425594 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

Adding to 45555321204 its reverse (40212355554), we get a palindrome (85767676758).

The spelling of 45555321204 in words is "forty-five billion, five hundred fifty-five million, three hundred twenty-one thousand, two hundred four".