55105146230512 has 40 divisors (see below), whose sum is σ = 123488640971136. Its totient is φ = 23331955198656.

The previous prime is 55105146230501. The next prime is 55105146230513. The reversal of 55105146230512 is 21503264150155.

It is a super-2 number, since 2×55105146230512² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55105146230513) 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, 2963907778 + ... + 2963926369.

Almost surely, 2^{55105146230512} is an apocalyptic number.

It is an amenable number.

55105146230512 is an abundant number, since it is smaller than the sum of its proper divisors (68383494740624).

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

55105146230512 is a wasteful number, since it uses less digits than its factorization.

55105146230512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5927834245 (or 5927834239 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 40.

The spelling of 55105146230512 in words is "fifty-five trillion, one hundred five billion, one hundred forty-six million, two hundred thirty thousand, five hundred twelve".