2115555555554 has 16 divisors (see below), whose sum is σ = 3626874525888. Its totient is φ = 906614701872.

The previous prime is 2115555555539. The next prime is 2115555555563. The reversal of 2115555555554 is 4555555555112.

It is a junction number, because it is equal to n+sod(n) for n = 2115555555496 and 2115555555505.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4076897 + ... + 4566420.

It is an arithmetic number, because the mean of its divisors is an integer number (226679657868).

Almost surely, 2^{2115555555554} is an apocalyptic number.

2115555555554 is a deficient number, since it is larger than the sum of its proper divisors (1511318970334).

2115555555554 is a wasteful number, since it uses less digits than its factorization.

2115555555554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8660809.

The product of its digits is 15625000, while the sum is 53.

The spelling of 2115555555554 in words is "two trillion, one hundred fifteen billion, five hundred fifty-five million, five hundred fifty-five thousand, five hundred fifty-four".