2011002400155 has 32 divisors (see below), whose sum is σ = 3677542041600. Its totient is φ = 919245255552.

The previous prime is 2011002400151. The next prime is 2011002400159. The reversal of 2011002400155 is 5510042001102.

It is an interprime number because it is at equal distance from previous prime (2011002400151) and next prime (2011002400159).

It is not a de Polignac number, because 2011002400155 - 2² = 2011002400151 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (2011002400151) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 665166 + ... + 2112924.

It is an arithmetic number, because the mean of its divisors is an integer number (114923188800).

Almost surely, 2^{2011002400155} is an apocalyptic number.

2011002400155 is a deficient number, since it is larger than the sum of its proper divisors (1666539641445).

2011002400155 is a wasteful number, since it uses less digits than its factorization.

2011002400155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1461003.

The product of its (nonzero) digits is 400, while the sum is 21.

Adding to 2011002400155 its reverse (5510042001102), we get a palindrome (7521044401257).

The spelling of 2011002400155 in words is "two trillion, eleven billion, two million, four hundred thousand, one hundred fifty-five".