54958979566 has 4 divisors (see below), whose sum is σ = 82438469352. Its totient is φ = 27479489782.

The previous prime is 54958979521. The next prime is 54958979591. The reversal of 54958979566 is 66597985945.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13739744890 + ... + 13739744893.

It is an arithmetic number, because the mean of its divisors is an integer number (20609617338).

Almost surely, 2^54958979566 is an apocalyptic number.

54958979566 is a deficient number, since it is larger than the sum of its proper divisors (27479489786).

54958979566 is a wasteful number, since it uses less digits than its factorization.

54958979566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27479489785.

The product of its digits is 734832000, while the sum is 73.

The spelling of 54958979566 in words is "fifty-four billion, nine hundred fifty-eight million, nine hundred seventy-nine thousand, five hundred sixty-six".