55506660156011 has 4 divisors (see below), whose sum is σ = 55506683955024. Its totient is φ = 55506636357000.

The previous prime is 55506660155993. The next prime is 55506660156043. The reversal of 55506660156011 is 11065106660555.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55506660156011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55506660156061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7968080 + ... + 13209981.

It is an arithmetic number, because the mean of its divisors is an integer number (13876670988756).

Almost surely, 2^{55506660156011} is an apocalyptic number.

55506660156011 is a deficient number, since it is larger than the sum of its proper divisors (23799013).

55506660156011 is a wasteful number, since it uses less digits than its factorization.

55506660156011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23799012.

The product of its (nonzero) digits is 810000, while the sum is 47.

The spelling of 55506660156011 in words is "fifty-five trillion, five hundred six billion, six hundred sixty million, one hundred fifty-six thousand, eleven".