55016720146 has 16 divisors (see below), whose sum is σ = 83096165376. Its totient is φ = 27318303936.

The previous prime is 55016720113. The next prime is 55016720147. The reversal of 55016720146 is 64102761055.

It is a happy number.

It is a super-2 number, since 2×55016720146² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55016720147) 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, 287290 + ... + 438826.

It is an arithmetic number, because the mean of its divisors is an integer number (5193510336).

Almost surely, 2^55016720146 is an apocalyptic number.

55016720146 is a deficient number, since it is larger than the sum of its proper divisors (28079445230).

55016720146 is a wasteful number, since it uses less digits than its factorization.

55016720146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152793.

The product of its (nonzero) digits is 50400, while the sum is 37.

The spelling of 55016720146 in words is "fifty-five billion, sixteen million, seven hundred twenty thousand, one hundred forty-six".