2001632115145 has 16 divisors (see below), whose sum is σ = 2586754170000. Its totient is φ = 1478111422464.

The previous prime is 2001632115113. The next prime is 2001632115173. The reversal of 2001632115145 is 5415112361002.

It can be written as a sum of positive squares in 8 ways, for example, as 542008108944 + 1459624006201 = 736212^2 + 1208149^2 .

It is a cyclic number.

It is not a de Polignac number, because 2001632115145 - 2⁵ = 2001632115113 is a prime.

It is a super-2 number, since 2×2001632115145² (a number of 25 digits) contains 22 as substring.

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, 10370481 + ... + 10561729.

It is an arithmetic number, because the mean of its divisors is an integer number (161672135625).

Almost surely, 2^{2001632115145} is an apocalyptic number.

It is an amenable number.

2001632115145 is a deficient number, since it is larger than the sum of its proper divisors (585122054855).

2001632115145 is a wasteful number, since it uses less digits than its factorization.

2001632115145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352284.

The product of its (nonzero) digits is 7200, while the sum is 31.

Adding to 2001632115145 its reverse (5415112361002), we get a palindrome (7416744476147).

The spelling of 2001632115145 in words is "two trillion, one billion, six hundred thirty-two million, one hundred fifteen thousand, one hundred forty-five".