2111506415106 has 64 divisors (see below), whose sum is σ = 4750961040000. Its totient is φ = 620054643200.

The previous prime is 2111506415101. The next prime is 2111506415197. The reversal of 2111506415106 is 6015146051112.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2111506415101) 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, 2215281 + ... + 3021668.

It is an arithmetic number, because the mean of its divisors is an integer number (74233766250).

Almost surely, 2^{2111506415106} is an apocalyptic number.

2111506415106 is an abundant number, since it is smaller than the sum of its proper divisors (2639454624894).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2111506415106 is a wasteful number, since it uses less digits than its factorization.

2111506415106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5237155.

The product of its (nonzero) digits is 7200, while the sum is 33.

The spelling of 2111506415106 in words is "two trillion, one hundred eleven billion, five hundred six million, four hundred fifteen thousand, one hundred six".