45651321140 has 48 divisors (see below), whose sum is σ = 96888551760. Its totient is φ = 18066585600.

The previous prime is 45651321139. The next prime is 45651321143. The reversal of 45651321140 is 4112315654.

It can be written as a sum of positive squares in 8 ways, for example, as 11554960036 + 34096361104 = 107494^2 + 184652^2 .

It is a junction number, because it is equal to n+sod(n) for n = 45651321097 and 45651321106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45651321143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1513244 + ... + 1543116.

It is an arithmetic number, because the mean of its divisors is an integer number (2018511495).

Almost surely, 2^45651321140 is an apocalyptic number.

It is an amenable number.

45651321140 is an abundant number, since it is smaller than the sum of its proper divisors (51237230620).

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

45651321140 is a wasteful number, since it uses less digits than its factorization.

45651321140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30692 (or 30690 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

Adding to 45651321140 its reverse (4112315654), we get a palindrome (49763636794).

The spelling of 45651321140 in words is "forty-five billion, six hundred fifty-one million, three hundred twenty-one thousand, one hundred forty".