55515332398156 has 48 divisors (see below), whose sum is σ = 101598371189280. Its totient is φ = 26517492385280.

The previous prime is 55515332398151. The next prime is 55515332398171. The reversal of 55515332398156 is 65189323351555.

It is a super-2 number, since 2×55515332398156² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55515332398094 and 55515332398103.

It is not an unprimeable number, because it can be changed into a prime (55515332398151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1849786 + ... + 10698241.

It is an arithmetic number, because the mean of its divisors is an integer number (2116632733110).

Almost surely, 2^{55515332398156} is an apocalyptic number.

It is an amenable number.

55515332398156 is a deficient number, since it is larger than the sum of its proper divisors (46083038791124).

55515332398156 is a wasteful number, since it uses less digits than its factorization.

55515332398156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12548634 (or 12548632 counting only the distinct ones).

The product of its digits is 72900000, while the sum is 61.

The spelling of 55515332398156 in words is "fifty-five trillion, five hundred fifteen billion, three hundred thirty-two million, three hundred ninety-eight thousand, one hundred fifty-six".