7055515105561 has 16 divisors (see below), whose sum is σ = 7810816245120. Its totient is φ = 6333094131840.

The previous prime is 7055515105531. The next prime is 7055515105571. The reversal of 7055515105561 is 1655015155507.

It is a cyclic number.

It is not a de Polignac number, because 7055515105561 - 2²⁹ = 7054978234649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7055515105511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52289551 + ... + 52424308.

It is an arithmetic number, because the mean of its divisors is an integer number (488176015320).

Almost surely, 2^{7055515105561} is an apocalyptic number.

7055515105561 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

It is an amenable number.

7055515105561 is a deficient number, since it is larger than the sum of its proper divisors (755301139559).

7055515105561 is a wasteful number, since it uses less digits than its factorization.

7055515105561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104714016.

The product of its (nonzero) digits is 656250, while the sum is 46.

The spelling of 7055515105561 in words is "seven trillion, fifty-five billion, five hundred fifteen million, one hundred five thousand, five hundred sixty-one".