20147071437515 has 16 divisors (see below), whose sum is σ = 26395296802560. Its totient is φ = 14640777402720.

The previous prime is 20147071437487. The next prime is 20147071437529. The reversal of 20147071437515 is 51573417074102.

It is not a de Polignac number, because 20147071437515 - 2²⁶ = 20147004328651 is a prime.

It is a super-3 number, since 3×20147071437515³ (a number of 41 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20147071437515.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145407479 + ... + 145545968.

It is an arithmetic number, because the mean of its divisors is an integer number (1649706050160).

Almost surely, 2^{20147071437515} is an apocalyptic number.

20147071437515 is a deficient number, since it is larger than the sum of its proper divisors (6248225365045).

20147071437515 is a wasteful number, since it uses less digits than its factorization.

20147071437515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290954722.

The product of its (nonzero) digits is 823200, while the sum is 47.

The spelling of 20147071437515 in words is "twenty trillion, one hundred forty-seven billion, seventy-one million, four hundred thirty-seven thousand, five hundred fifteen".