20245532544720 has 120 divisors (see below), whose sum is σ = 77704282071936. Its totient is φ = 4627550294784.

The previous prime is 20245532544697. The next prime is 20245532544749. The reversal of 20245532544720 is 2744523554202.

20245532544720 is a `hidden beast` number, since 2 + 0 + 2 + 4 + 5 + 5 + 32 + 544 + 72 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2008480332 + ... + 2008490411.

Almost surely, 2^{20245532544720} is an apocalyptic number.

20245532544720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20245532544720 is an abundant number, since it is smaller than the sum of its proper divisors (57458749527216).

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

20245532544720 is a wasteful number, since it uses less digits than its factorization.

20245532544720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4016970769 (or 4016970760 counting only the distinct ones).

The product of its (nonzero) digits is 2688000, while the sum is 45.

The spelling of 20245532544720 in words is "twenty trillion, two hundred forty-five billion, five hundred thirty-two million, five hundred forty-four thousand, seven hundred twenty".