55446534418 has 64 divisors (see below), whose sum is σ = 94187681280. Its totient is φ = 24261120000.

The previous prime is 55446534413. The next prime is 55446534421. The reversal of 55446534418 is 81443564455.

It is not an unprimeable number, because it can be changed into a prime (55446534413) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26643138 + ... + 26645218.

It is an arithmetic number, because the mean of its divisors is an integer number (1471682520).

Almost surely, 2^55446534418 is an apocalyptic number.

55446534418 is a deficient number, since it is larger than the sum of its proper divisors (38741146862).

55446534418 is a wasteful number, since it uses less digits than its factorization.

55446534418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2515.

The product of its digits is 4608000, while the sum is 49.

The spelling of 55446534418 in words is "fifty-five billion, four hundred forty-six million, five hundred thirty-four thousand, four hundred eighteen".