20153492515872 has 96 divisors (see below), whose sum is σ = 58821534192960. Its totient is φ = 6713200627200.

The previous prime is 20153492515861. The next prime is 20153492515889. The reversal of 20153492515872 is 27851529435102.

20153492515872 is a `hidden beast` number, since 2 + 0 + 1 + 5 + 3 + 4 + 9 + 2 + 51 + 587 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6784173 + ... + 9291500.

It is an arithmetic number, because the mean of its divisors is an integer number (612724314510).

Almost surely, 2^{20153492515872} is an apocalyptic number.

It is an amenable number.

20153492515872 is an abundant number, since it is smaller than the sum of its proper divisors (38668041677088).

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

20153492515872 is a wasteful number, since it uses less digits than its factorization.

20153492515872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16077143 (or 16077129 counting only the distinct ones).

The product of its (nonzero) digits is 6048000, while the sum is 54.

The spelling of 20153492515872 in words is "twenty trillion, one hundred fifty-three billion, four hundred ninety-two million, five hundred fifteen thousand, eight hundred seventy-two".