20214144213515 has 16 divisors (see below), whose sum is σ = 27722909387520. Its totient is φ = 13860800227680.

The previous prime is 20214144213503. The next prime is 20214144213539. The reversal of 20214144213515 is 51531244141202.

It is not a de Polignac number, because 20214144213515 - 2¹⁴ = 20214144197131 is a prime.

It is a super-2 number, since 2×20214144213515² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5308925 + ... + 8283294.

It is an arithmetic number, because the mean of its divisors is an integer number (1732681836720).

Almost surely, 2^{20214144213515} is an apocalyptic number.

20214144213515 is a deficient number, since it is larger than the sum of its proper divisors (7508765174005).

20214144213515 is a wasteful number, since it uses less digits than its factorization.

20214144213515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13634722.

The product of its (nonzero) digits is 38400, while the sum is 35.

Adding to 20214144213515 its reverse (51531244141202), we get a palindrome (71745388354717).

The spelling of 20214144213515 in words is "twenty trillion, two hundred fourteen billion, one hundred forty-four million, two hundred thirteen thousand, five hundred fifteen".