2001152015505 has 64 divisors (see below), whose sum is σ = 3610681712640. Its totient is φ = 1051382404800.

The previous prime is 2001152015503. The next prime is 2001152015507. The reversal of 2001152015505 is 5055102511002.

2001152015505 is a `hidden beast` number, since 2 + 0 + 0 + 1 + 152 + 0 + 1 + 5 + 505 = 666.

It is an interprime number because it is at equal distance from previous prime (2001152015503) and next prime (2001152015507).

It is not a de Polignac number, because 2001152015505 - 2¹ = 2001152015503 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2001152015503) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11637100 + ... + 11807810.

It is an arithmetic number, because the mean of its divisors is an integer number (56416901760).

Almost surely, 2^{2001152015505} is an apocalyptic number.

It is an amenable number.

2001152015505 is a deficient number, since it is larger than the sum of its proper divisors (1609529697135).

2001152015505 is a wasteful number, since it uses less digits than its factorization.

2001152015505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172019 (or 172013 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 27.

Adding to 2001152015505 its reverse (5055102511002), we get a palindrome (7056254526507).

The spelling of 2001152015505 in words is "two trillion, one billion, one hundred fifty-two million, fifteen thousand, five hundred five".