45205245661 has 8 divisors (see below), whose sum is σ = 47428456448. Its totient is φ = 43029846000.

The previous prime is 45205245643. The next prime is 45205245677. The reversal of 45205245661 is 16654250254.

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 45205245661 - 2⁵ = 45205245629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45205245611) 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, 11950845 + ... + 11954626.

It is an arithmetic number, because the mean of its divisors is an integer number (5928557056).

Almost surely, 2^45205245661 is an apocalyptic number.

It is an amenable number.

45205245661 is a deficient number, since it is larger than the sum of its proper divisors (2223210787).

45205245661 is a wasteful number, since it uses less digits than its factorization.

45205245661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23905563.

The product of its (nonzero) digits is 288000, while the sum is 40.

The spelling of 45205245661 in words is "forty-five billion, two hundred five million, two hundred forty-five thousand, six hundred sixty-one".