55446738666672 has 40 divisors (see below), whose sum is σ = 144963160138944. Its totient is φ = 18259568555584.

The previous prime is 55446738666667. The next prime is 55446738666677. The reversal of 55446738666672 is 27666683764455.

It is an interprime number because it is at equal distance from previous prime (55446738666667) and next prime (55446738666677).

It is a junction number, because it is equal to n+sod(n) for n = 55446738666594 and 55446738666603.

It is not an unprimeable number, because it can be changed into a prime (55446738666677) 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, 6958673058 + ... + 6958681025.

Almost surely, 2^{55446738666672} is an apocalyptic number.

It is an amenable number.

55446738666672 is an abundant number, since it is smaller than the sum of its proper divisors (89516421472272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55446738666672 is a wasteful number, since it uses less digits than its factorization.

55446738666672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13917354177 (or 13917354171 counting only the distinct ones).

The product of its digits is 7315660800, while the sum is 75.

The spelling of 55446738666672 in words is "fifty-five trillion, four hundred forty-six billion, seven hundred thirty-eight million, six hundred sixty-six thousand, six hundred seventy-two".