20435151240 has 192 divisors, whose sum is σ = 80366981760. Its totient is φ = 4396124160.

The previous prime is 20435151239. The next prime is 20435151283. The reversal of 20435151240 is 4215153402.

20435151240 is a `hidden beast` number, since 20 + 4 + 3 + 515 + 124 + 0 = 666.

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 47 ways as a sum of consecutive naturals, for example, 195666 + ... + 281345.

It is an arithmetic number, because the mean of its divisors is an integer number (418578030).

Almost surely, 2^20435151240 is an apocalyptic number.

20435151240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20435151240 is an abundant number, since it is smaller than the sum of its proper divisors (59931830520).

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

20435151240 is a wasteful number, since it uses less digits than its factorization.

20435151240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477052 (or 477045 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The spelling of 20435151240 in words is "twenty billion, four hundred thirty-five million, one hundred fifty-one thousand, two hundred forty".