20152435456 has 36 divisors (see below), whose sum is σ = 41207297544. Its totient is φ = 9830451200.

The previous prime is 20152435423. The next prime is 20152435463. The reversal of 20152435456 is 65453425102.

It is a super-2 number, since 2×20152435456² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 949510 + ... + 970501.

It is an arithmetic number, because the mean of its divisors is an integer number (1144647154).

Almost surely, 2^20152435456 is an apocalyptic number.

It is an amenable number.

20152435456 is an abundant number, since it is smaller than the sum of its proper divisors (21054862088).

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

20152435456 is an equidigital number, since it uses as much as digits as its factorization.

20152435456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1920068 (or 1920054 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 37.

The spelling of 20152435456 in words is "twenty billion, one hundred fifty-two million, four hundred thirty-five thousand, four hundred fifty-six".