55666334537 has 8 divisors (see below), whose sum is σ = 61409236320. Its totient is φ = 50037153760.

The previous prime is 55666334473. The next prime is 55666334561. The reversal of 55666334537 is 73543366655.

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

It is not a de Polignac number, because 55666334537 - 2⁶ = 55666334473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55666334587) 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, 28429223 + ... + 28431180.

It is an arithmetic number, because the mean of its divisors is an integer number (7676154540).

Almost surely, 2^55666334537 is an apocalyptic number.

It is an amenable number.

55666334537 is a deficient number, since it is larger than the sum of its proper divisors (5742901783).

55666334537 is a wasteful number, since it uses less digits than its factorization.

55666334537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56860503.

The product of its digits is 20412000, while the sum is 53.

The spelling of 55666334537 in words is "fifty-five billion, six hundred sixty-six million, three hundred thirty-four thousand, five hundred thirty-seven".