20412157584 has 160 divisors (see below), whose sum is σ = 68718101760. Its totient is φ = 5066735616.

The previous prime is 20412157583. The next prime is 20412157603. The reversal of 20412157584 is 48575121402.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (20412157583) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 63189 + ... + 211700.

It is an arithmetic number, because the mean of its divisors is an integer number (429488136).

Almost surely, 2^20412157584 is an apocalyptic number.

20412157584 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20412157584 is an abundant number, since it is smaller than the sum of its proper divisors (48305944176).

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

20412157584 is a wasteful number, since it uses less digits than its factorization.

20412157584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274937 (or 274931 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 39.

Adding to 20412157584 its reverse (48575121402), we get a palindrome (68987278986).

The spelling of 20412157584 in words is "twenty billion, four hundred twelve million, one hundred fifty-seven thousand, five hundred eighty-four".