45005632661 has 8 divisors (see below), whose sum is σ = 49099435200. Its totient is φ = 40912227040.

The previous prime is 45005632657. The next prime is 45005632667. The reversal of 45005632661 is 16623650054.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45005632661 - 2² = 45005632657 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 (45005632667) 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 7 ways as a sum of consecutive naturals, for example, 169520 + ... + 344598.

It is an arithmetic number, because the mean of its divisors is an integer number (6137429400).

Almost surely, 2^45005632661 is an apocalyptic number.

It is an amenable number.

45005632661 is a deficient number, since it is larger than the sum of its proper divisors (4093802539).

45005632661 is a wasteful number, since it uses less digits than its factorization.

45005632661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198459.

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 45005632661 in words is "forty-five billion, five million, six hundred thirty-two thousand, six hundred sixty-one".