6656010101655 has 64 divisors (see below), whose sum is σ = 10712453326848. Its totient is φ = 3529007032320.

The previous prime is 6656010101623. The next prime is 6656010101659. The reversal of 6656010101655 is 5561010106566.

It is not a de Polignac number, because 6656010101655 - 2⁵ = 6656010101623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6656010101659) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3557460370 + ... + 3557462240.

It is an arithmetic number, because the mean of its divisors is an integer number (167382083232).

Almost surely, 2^{6656010101655} is an apocalyptic number.

6656010101655 is a deficient number, since it is larger than the sum of its proper divisors (4056443225193).

6656010101655 is a wasteful number, since it uses less digits than its factorization.

6656010101655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3896.

The product of its (nonzero) digits is 162000, while the sum is 42.

The spelling of 6656010101655 in words is "six trillion, six hundred fifty-six billion, ten million, one hundred one thousand, six hundred fifty-five".