45555662131 has 4 divisors (see below), whose sum is σ = 52063613872. Its totient is φ = 39047710392.

The previous prime is 45555662123. The next prime is 45555662137. The reversal of 45555662131 is 13126655554.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13126655554 = 2 ⋅6563327777.

It is a cyclic number.

It is not a de Polignac number, because 45555662131 - 2³ = 45555662123 is a prime.

It is a super-3 number, since 3×45555662131³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45555662137) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3253975860 + ... + 3253975873.

It is an arithmetic number, because the mean of its divisors is an integer number (13015903468).

Almost surely, 2^45555662131 is an apocalyptic number.

45555662131 is a deficient number, since it is larger than the sum of its proper divisors (6507951741).

45555662131 is an equidigital number, since it uses as much as digits as its factorization.

45555662131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6507951740.

The product of its digits is 540000, while the sum is 43.

The spelling of 45555662131 in words is "forty-five billion, five hundred fifty-five million, six hundred sixty-two thousand, one hundred thirty-one".