55500660790615 has 4 divisors (see below), whose sum is σ = 66600792948744. Its totient is φ = 44400528632488.

The previous prime is 55500660790489. The next prime is 55500660790643. The reversal of 55500660790615 is 51609706600555.

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-55500660790615 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 3 ways as a sum of consecutive naturals, for example, 5550066079057 + ... + 5550066079066.

It is an arithmetic number, because the mean of its divisors is an integer number (16650198237186).

Almost surely, 2^{55500660790615} is an apocalyptic number.

55500660790615 is a deficient number, since it is larger than the sum of its proper divisors (11100132158129).

55500660790615 is a wasteful number, since it uses less digits than its factorization.

55500660790615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11100132158128.

The product of its (nonzero) digits is 8505000, while the sum is 55.

The spelling of 55500660790615 in words is "fifty-five trillion, five hundred billion, six hundred sixty million, seven hundred ninety thousand, six hundred fifteen".