55100463646 has 4 divisors (see below), whose sum is σ = 82650695472. Its totient is φ = 27550231822.

The previous prime is 55100463643. The next prime is 55100463653. The reversal of 55100463646 is 64636400155.

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

It is a super-2 number, since 2×55100463646² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 55100463599 and 55100463608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55100463643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13775115910 + ... + 13775115913.

It is an arithmetic number, because the mean of its divisors is an integer number (20662673868).

Almost surely, 2^55100463646 is an apocalyptic number.

55100463646 is a deficient number, since it is larger than the sum of its proper divisors (27550231826).

55100463646 is a wasteful number, since it uses less digits than its factorization.

55100463646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27550231825.

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 55100463646 in words is "fifty-five billion, one hundred million, four hundred sixty-three thousand, six hundred forty-six".