45603539520 has 672 divisors, whose sum is σ = 189736390656. Its totient is φ = 9167155200.

The previous prime is 45603539519. The next prime is 45603539539. The reversal of 45603539520 is 2593530654.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 16039219 + ... + 16042061.

Almost surely, 2^45603539520 is an apocalyptic number.

45603539520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45603539520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94868195328).

45603539520 is an abundant number, since it is smaller than the sum of its proper divisors (144132851136).

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

45603539520 is a wasteful number, since it uses less digits than its factorization.

45603539520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2919 (or 2902 counting only the distinct ones).

The product of its (nonzero) digits is 486000, while the sum is 42.

The spelling of 45603539520 in words is "forty-five billion, six hundred three million, five hundred thirty-nine thousand, five hundred twenty".