45945553140 has 72 divisors (see below), whose sum is σ = 139486831848. Its totient is φ = 12241716480.

The previous prime is 45945553139. The next prime is 45945553141. The reversal of 45945553140 is 4135554954.

It is a happy number.

45945553140 is a `hidden beast` number, since 4 + 5 + 9 + 455 + 53 + 140 = 666.

It is an interprime number because it is at equal distance from previous prime (45945553139) and next prime (45945553141).

It can be written as a sum of positive squares in 4 ways, for example, as 26871733476 + 19073819664 = 163926^2 + 138108^2 .

It is a super-2 number, since 2×45945553140² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45945553141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 104514 + ... + 320646.

It is an arithmetic number, because the mean of its divisors is an integer number (1937317109).

Almost surely, 2^45945553140 is an apocalyptic number.

It is an amenable number.

45945553140 is an abundant number, since it is smaller than the sum of its proper divisors (93541278708).

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

45945553140 is a wasteful number, since it uses less digits than its factorization.

45945553140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217329 (or 217324 counting only the distinct ones).

The product of its (nonzero) digits is 1080000, while the sum is 45.

The spelling of 45945553140 in words is "forty-five billion, nine hundred forty-five million, five hundred fifty-three thousand, one hundred forty".