55561100006971 has 8 divisors (see below), whose sum is σ = 59835107130624. Its totient is φ = 51287103791040.

The previous prime is 55561100006957. The next prime is 55561100006977. The reversal of 55561100006971 is 17960000116555.

It is a happy number.

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

It is not a de Polignac number, because 55561100006971 - 2³³ = 55552510072379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55561100006977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10080135 + ... + 14585311.

It is an arithmetic number, because the mean of its divisors is an integer number (7479388391328).

Almost surely, 2^{55561100006971} is an apocalyptic number.

55561100006971 is a deficient number, since it is larger than the sum of its proper divisors (4274007123653).

55561100006971 is a wasteful number, since it uses less digits than its factorization.

55561100006971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5453861.

The product of its (nonzero) digits is 283500, while the sum is 46.

The spelling of 55561100006971 in words is "fifty-five trillion, five hundred sixty-one billion, one hundred million, six thousand, nine hundred seventy-one".