20152745488 has 20 divisors (see below), whose sum is σ = 39221045248. Its totient is φ = 10031185440.

The previous prime is 20152745479. The next prime is 20152745531. The reversal of 20152745488 is 88454725102.

It is a super-2 number, since 2×20152745488² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2820528 + ... + 2827663.

Almost surely, 2^20152745488 is an apocalyptic number.

It is an amenable number.

20152745488 is a deficient number, since it is larger than the sum of its proper divisors (19068299760).

20152745488 is a wasteful number, since it uses less digits than its factorization.

20152745488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5648422 (or 5648416 counting only the distinct ones).

The product of its (nonzero) digits is 716800, while the sum is 46.

The spelling of 20152745488 in words is "twenty billion, one hundred fifty-two million, seven hundred forty-five thousand, four hundred eighty-eight".