45661331025 has 36 divisors (see below), whose sum is σ = 82088657820. Its totient is φ = 24262147200.

The previous prime is 45661331011. The next prime is 45661331029. The reversal of 45661331025 is 52013316654.

45661331025 is a `hidden beast` number, since 4 + 5 + 6 + 613 + 3 + 10 + 25 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 8313062976 + 37348268049 = 91176^2 + 193257^2 .

It is not a de Polignac number, because 45661331025 - 2⁹ = 45661330513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45661331029) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 316686 + ... + 437735.

It is an arithmetic number, because the mean of its divisors is an integer number (2280240495).

Almost surely, 2^45661331025 is an apocalyptic number.

45661331025 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

45661331025 is a deficient number, since it is larger than the sum of its proper divisors (36427326795).

45661331025 is a wasteful number, since it uses less digits than its factorization.

45661331025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754706 (or 754698 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

Adding to 45661331025 its reverse (52013316654), we get a palindrome (97674647679).

The spelling of 45661331025 in words is "forty-five billion, six hundred sixty-one million, three hundred thirty-one thousand, twenty-five".