20151398796480 has 336 divisors, whose sum is σ = 82658286157824. Its totient is φ = 4405771560960.

The previous prime is 20151398796449. The next prime is 20151398796491. The reversal of 20151398796480 is 8469789315102.

20151398796480 is a `hidden beast` number, since 2 + 0 + 1 + 51 + 39 + 8 + 79 + 6 + 480 = 666.

It is a tau number, because it is divible by the number of its divisors (336).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21266176 + ... + 22193535.

It is a 1-persistent number, because it is pandigital, but 2⋅20151398796480 = 40302797592960 is not.

Almost surely, 2^{20151398796480} is an apocalyptic number.

20151398796480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20151398796480 is an abundant number, since it is smaller than the sum of its proper divisors (62506887361344).

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

20151398796480 is a wasteful number, since it uses less digits than its factorization.

20151398796480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43459764 (or 43459751 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 63.

The spelling of 20151398796480 in words is "twenty trillion, one hundred fifty-one billion, three hundred ninety-eight million, seven hundred ninety-six thousand, four hundred eighty".