2011523455015 has 16 divisors (see below), whose sum is σ = 2445025176000. Its totient is φ = 1588481120512.

The previous prime is 2011523454931. The next prime is 2011523455027. The reversal of 2011523455015 is 5105543251102.

It is a cyclic number.

It is not a de Polignac number, because 2011523455015 - 2²¹ = 2011521357863 is a prime.

It is a super-2 number, since 2×2011523455015² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

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, 3506632 + ... + 4039741.

It is an arithmetic number, because the mean of its divisors is an integer number (152814073500).

Almost surely, 2^{2011523455015} is an apocalyptic number.

2011523455015 is a deficient number, since it is larger than the sum of its proper divisors (433501720985).

2011523455015 is an equidigital number, since it uses as much as digits as its factorization.

2011523455015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7547066.

The product of its (nonzero) digits is 30000, while the sum is 34.

The spelling of 2011523455015 in words is "two trillion, eleven billion, five hundred twenty-three million, four hundred fifty-five thousand, fifteen".