20120315645162 has 16 divisors (see below), whose sum is σ = 30270288600000. Its totient is φ = 10030258557120.

The previous prime is 20120315645161. The next prime is 20120315645173. The reversal of 20120315645162 is 26154651302102.

It is not an unprimeable number, because it can be changed into a prime (20120315645161) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 8748287 + ... + 10806162.

It is an arithmetic number, because the mean of its divisors is an integer number (1891893037500).

Almost surely, 2^{20120315645162} is an apocalyptic number.

20120315645162 is a deficient number, since it is larger than the sum of its proper divisors (10149972954838).

20120315645162 is a wasteful number, since it uses less digits than its factorization.

20120315645162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19555981.

The product of its (nonzero) digits is 86400, while the sum is 38.

Adding to 20120315645162 its reverse (26154651302102), we get a palindrome (46274966947264).

The spelling of 20120315645162 in words is "twenty trillion, one hundred twenty billion, three hundred fifteen million, six hundred forty-five thousand, one hundred sixty-two".