115655566501 has 16 divisors (see below), whose sum is σ = 123842894400. Its totient is φ = 107679362688.

The previous prime is 115655566471. The next prime is 115655566531. The reversal of 115655566501 is 105665556511.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (115655566471) and next prime (115655566531).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115655566501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115655566531) 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, 4305825 + ... + 4332601.

It is an arithmetic number, because the mean of its divisors is an integer number (7740180900).

Almost surely, 2^115655566501 is an apocalyptic number.

It is an amenable number.

115655566501 is a deficient number, since it is larger than the sum of its proper divisors (8187327899).

115655566501 is a wasteful number, since it uses less digits than its factorization.

115655566501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30708.

The product of its (nonzero) digits is 675000, while the sum is 46.

The spelling of 115655566501 in words is "one hundred fifteen billion, six hundred fifty-five million, five hundred sixty-six thousand, five hundred one".