556161707161655 has 8 divisors (see below), whose sum is σ = 762736055536032. Its totient is φ = 381368027767968.

The previous prime is 556161707161633. The next prime is 556161707161663.

556161707161655 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 556161707161655 - 2³⁶ = 556092987684919 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 7945167245132 + ... + 7945167245201.

It is an arithmetic number, because the mean of its divisors is an integer number (95342006942004).

Almost surely, 2^{556161707161655} is an apocalyptic number.

556161707161655 is a deficient number, since it is larger than the sum of its proper divisors (206574348374377).

556161707161655 is a wasteful number, since it uses less digits than its factorization.

556161707161655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15890334490345.

The product of its (nonzero) digits is 39690000, while the sum is 62.

The spelling of 556161707161655 in words is "five hundred fifty-six trillion, one hundred sixty-one billion, seven hundred seven million, one hundred sixty-one thousand, six hundred fifty-five".